LTX-2.3 official I2V workflow fails with SamplerCustomAdvanced tensor size mismatch.

Open

#13,887 opened on May 14, 2026 2 comments 1 reaction 0 assignees View on GitHub

Potential Bug

Dominant language: Python
Stars: 133k
Forks: 15.7k
Avg merge: 1d 7h
Merged PRs (30d): 158

Description

### Custom Node Testing

- [ ] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)

### Expected Behavior

### Actual Behavior

LTX-2.3 official I2V workflow fails with SamplerCustomAdvanced tensor size mismatch.

Environment:
- ComfyUI updated to latest master
- Python 3.12
- PyTorch 2.7.0 + CUDA 12.6
- GPU: RTX 4090D 48GB
- Workflow: official video_ltx2_3_i2v.json
- Models:
- ltx-2.3-22b-dev-fp8.safetensors
- ltx-2.3-22b-distilled-lora-384.safetensors
- gemma_3_12B_it_fp4_mixed.safetensors
- ltx-2.3-spatial-upscaler-x2-1.0.safetensors

Tried:
- 1664x928 input with 1664x928 settings
- 960x544 input with 960x544 settings
- duration 3
- fps 25
- refreshed model list
- updated ComfyUI and requirements

Error:
RuntimeError: The size of tensor a (1200) must match the size of tensor b (163328) at non-singleton dimension 2

Node:
#320:283 SamplerCustomAdvanced

Expected:
I2V workflow should generate video.

Actual:
Fails during sampling with tensor size mismatch.

### Steps to Reproduce

1. Update ComfyUI to latest master.
2. Install requirements with pip install -r requirements.txt.
3. Load official workflow video_ltx2_3_i2v.json.
4. Use the required LTX-2.3 models:
- ltx-2.3-22b-dev-fp8.safetensors
- ltx-2.3-22b-distilled-lora-384.safetensors
- gemma_3_12B_it_fp4_mixed.safetensors
- ltx-2.3-spatial-upscaler-x2-1.0.safetensors
5. Upload an input image.
6. Set width/height to match the image.
7. Run the workflow.
8. The workflow fails at SamplerCustomAdvanced with tensor size mismatch.

### Debug Logs

```powershell
[DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
[DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui/components/buttonGroup.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
[DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui/components/button.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
[DEPRECATION WARNING] Detected import of deprecated legacy API: /extensions/core/widgetInputs.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
[DEPRECATION WARNING] Detected import of deprecated legacy API: /extensions/core/clipspace.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
[DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui/imagePreview.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
[DEPRECATION WARNING] Detected import of deprecated legacy API: /extensions/core/groupNode.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
[DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui/components/popup.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/pickr.min.js
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/photoswipe-lightbox.esm.min.js
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/photoswipe.min.css
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/classic.min.css
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/juxtapose.min.js
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/juxtapose.css
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/model-viewer.min.js
[]
[]
[ERROR] An error occurred while retrieving information for the 'SP_SDLoader' node.
Traceback (most recent call last):
File "/root/ComfyUI/server.py", line 752, in get_object_info
out[x] = node_info(x)
^^^^^^^^^^^^
File "/root/ComfyUI/server.py", line 701, in node_info
info['input'] = obj_class.INPUT_TYPES()
^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI-SP-Nodes/nodes/group_nodes/FluxLoader.py", line 413, in INPUT_TYPES
"vae_name": (["Baked"] + nodes.VAELoader.vae_list(),),
^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: VAELoader.vae_list() missing 1 required positional argument: 's'

[ERROR] An error occurred while retrieving information for the 'SP_FluxLoader' node.
Traceback (most recent call last):
File "/root/ComfyUI/server.py", line 752, in get_object_info
out[x] = node_info(x)
^^^^^^^^^^^^
File "/root/ComfyUI/server.py", line 701, in node_info
info['input'] = obj_class.INPUT_TYPES()
^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI-SP-Nodes/nodes/group_nodes/FluxLoader.py", line 709, in INPUT_TYPES
"vae_name": (nodes.VAELoader.vae_list(),),
^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: VAELoader.vae_list() missing 1 required positional argument: 's'

[ERROR] An error occurred while retrieving information for the 'SP_HunyuanLoader' node.
Traceback (most recent call last):
File "/root/ComfyUI/server.py", line 752, in get_object_info
out[x] = node_info(x)
^^^^^^^^^^^^
File "/root/ComfyUI/server.py", line 701, in node_info
info['input'] = obj_class.INPUT_TYPES()
^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI-SP-Nodes/nodes/group_nodes/FluxLoader.py", line 857, in INPUT_TYPES
"vae_name": (nodes.VAELoader.vae_list(),),
^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: VAELoader.vae_list() missing 1 required positional argument: 's'

[ERROR] An error occurred while retrieving information for the 'SP_SD3Loader' node.
Traceback (most recent call last):
File "/root/ComfyUI/server.py", line 752, in get_object_info
out[x] = node_info(x)
^^^^^^^^^^^^
File "/root/ComfyUI/server.py", line 701, in node_info
info['input'] = obj_class.INPUT_TYPES()
^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI-SP-Nodes/nodes/group_nodes/FluxLoader.py", line 774, in INPUT_TYPES
input_types = dict(super().INPUT_TYPES())
^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI-SP-Nodes/nodes/group_nodes/FluxLoader.py", line 709, in INPUT_TYPES
"vae_name": (nodes.VAELoader.vae_list(),),
^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: VAELoader.vae_list() missing 1 required positional argument: 's'

[ERROR] An error occurred while retrieving information for the 'SP_ModelLoader' node.
Traceback (most recent call last):
File "/root/ComfyUI/server.py", line 752, in get_object_info
out[x] = node_info(x)
^^^^^^^^^^^^
File "/root/ComfyUI/server.py", line 701, in node_info
info['input'] = obj_class.INPUT_TYPES()
^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI-SP-Nodes/nodes/group_nodes/FluxLoader.py", line 955, in INPUT_TYPES
"vae_name": (nodes.VAELoader.vae_list(),),
^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: VAELoader.vae_list() missing 1 required positional argument: 's'

QualityOfLifeSuit_Omar92::NSP ready
FETCH ComfyRegistry Data: 10/145
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FETCH ComfyRegistry Data: 145/145
FETCH ComfyRegistry Data [DONE]
[ComfyUI-Manager] default cache updated: https://api.comfy.org/nodes
FETCH DATA from: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/custom-node-list.json [DONE]
[ComfyUI-Manager] All startup tasks have been completed.
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/photoswipe-lightbox.esm.min.js
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/photoswipe.min.css
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/pickr.min.js
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/classic.min.css
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/model-viewer.min.js
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/juxtapose.css
/root/ComfyUI/custom_nodes/comfyui-mixlab-nodes/webApp/lib/juxtapose.min.js
[]
[]
[ERROR] An error occurred while retrieving information for the 'SP_SDLoader' node.
Traceback (most recent call last):
File "/root/ComfyUI/server.py", line 752, in get_object_info
out[x] = node_info(x)
^^^^^^^^^^^^
File "/root/ComfyUI/server.py", line 701, in node_info
info['input'] = obj_class.INPUT_TYPES()
^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI-SP-Nodes/nodes/group_nodes/FluxLoader.py", line 413, in INPUT_TYPES
"vae_name": (["Baked"] + nodes.VAELoader.vae_list(),),
^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: VAELoader.vae_list() missing 1 required positional argument: 's'

[]
[]
[ERROR] An error occurred while retrieving information for the 'SP_SDLoader' node.
Traceback (most recent call last):
File "/root/ComfyUI/server.py", line 752, in get_object_info
out[x] = node_info(x)
^^^^^^^^^^^^
File "/root/ComfyUI/server.py", line 701, in node_info
info['input'] = obj_class.INPUT_TYPES()
^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI-SP-Nodes/nodes/group_nodes/FluxLoader.py", line 413, in INPUT_TYPES
"vae_name": (["Baked"] + nodes.VAELoader.vae_list(),),
^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: VAELoader.vae_list() missing 1 required positional argument: 's'

got prompt
Failed to validate prompt for output 75:
* LatentUpscaleModelLoader 320:311:
- Value not in list: model_name: 'ltx-2.3-spatial-upscaler-x2-1.1.safetensors' not in ['ltx-2.3-spatial-upscaler-x2-1.0.safetensors']
Output will be ignored
invalid prompt: {'type': 'prompt_outputs_failed_validation', 'message': 'Prompt outputs failed validation', 'details': '', 'extra_info': {}}
got prompt
VAE load device: cuda:0, offload device: cpu, dtype: torch.float32
Found quantization metadata version 1
Detected mixed precision quantization
Using mixed precision operations
model weight dtype torch.bfloat16, manual cast: torch.bfloat16
model_type FLUX
VAE load device: cuda:0, offload device: cpu, dtype: torch.bfloat16
no CLIP/text encoder weights in checkpoint, the text encoder model will not be loaded.
Requested to load VideoVAE
loaded completely; 46581.55 MB usable, 1384.94 MB loaded, full load: True
Found quantization metadata version 1
Using MixedPrecisionOps for text encoder
CLIP/text encoder model load device: cuda:0, offload device: cpu, current: cpu, dtype: torch.float16
Requested to load LTXAVTEModel_
loaded completely; 44009.69 MB usable, 11201.91 MB loaded, full load: True
Requested to load LTXAV
loaded completely; 33881.81 MB usable, 23836.64 MB loaded, full load: True
!!! Exception during processing !!! The size of tensor a (2200) must match the size of tensor b (291328) at non-singleton dimension 2
Traceback (most recent call last):
File "/root/ComfyUI/execution.py", line 535, in execute
output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/execution.py", line 335, in get_output_data
return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/execution.py", line 309, in _async_map_node_over_list
await process_inputs(input_dict, i)
File "/root/ComfyUI/execution.py", line 297, in process_inputs
result = f(**inputs)
^^^^^^^^^^^
File "/root/ComfyUI/comfy_api/internal/__init__.py", line 149, in wrapped_func
return method(locked_class, **inputs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy_api/latest/_io.py", line 1833, in EXECUTE_NORMALIZED
to_return = cls.execute(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy_extras/nodes_custom_sampler.py", line 963, in execute
samples = guider.sample(noise.generate_noise(latent), latent_image, sampler, sigmas, denoise_mask=noise_mask, callback=callback, disable_pbar=disable_pbar, seed=noise.seed)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 1052, in sample
output = executor.execute(noise, latent_image, sampler, sigmas, denoise_mask, callback, disable_pbar, seed, latent_shapes=latent_shapes)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/patcher_extension.py", line 112, in execute
return self.original(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 995, in outer_sample
output = self.inner_sample(noise, latent_image, device, sampler, sigmas, denoise_mask, callback, disable_pbar, seed, latent_shapes=latent_shapes)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 981, in inner_sample
samples = executor.execute(self, sigmas, extra_args, callback, noise, latent_image, denoise_mask, disable_pbar)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/patcher_extension.py", line 112, in execute
return self.original(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI-TiledDiffusion/utils.py", line 34, in KSAMPLER_sample
return orig_fn(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI_smZNodes/smZNodes.py", line 114, in KSAMPLER_sample
return orig_fn(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 744, in sample
noise = model_wrap.inner_model.model_sampling.noise_scaling(sigmas[0], noise, latent_image, self.max_denoise(model_wrap, sigmas))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/model_sampling.py", line 96, in noise_scaling
s = getattr(self, "noise_scale", 1.0)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: The size of tensor a (2200) must match the size of tensor b (291328) at non-singleton dimension 2

Prompt executed in 74.95 seconds
got prompt
!!! Exception during processing !!! The size of tensor a (3640) must match the size of tensor b (475648) at non-singleton dimension 2
Traceback (most recent call last):
File "/root/ComfyUI/execution.py", line 535, in execute
output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/execution.py", line 335, in get_output_data
return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/execution.py", line 309, in _async_map_node_over_list
await process_inputs(input_dict, i)
File "/root/ComfyUI/execution.py", line 297, in process_inputs
result = f(**inputs)
^^^^^^^^^^^
File "/root/ComfyUI/comfy_api/internal/__init__.py", line 149, in wrapped_func
return method(locked_class, **inputs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy_api/latest/_io.py", line 1833, in EXECUTE_NORMALIZED
to_return = cls.execute(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy_extras/nodes_custom_sampler.py", line 963, in execute
samples = guider.sample(noise.generate_noise(latent), latent_image, sampler, sigmas, denoise_mask=noise_mask, callback=callback, disable_pbar=disable_pbar, seed=noise.seed)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 1052, in sample
output = executor.execute(noise, latent_image, sampler, sigmas, denoise_mask, callback, disable_pbar, seed, latent_shapes=latent_shapes)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/patcher_extension.py", line 112, in execute
return self.original(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 995, in outer_sample
output = self.inner_sample(noise, latent_image, device, sampler, sigmas, denoise_mask, callback, disable_pbar, seed, latent_shapes=latent_shapes)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 981, in inner_sample
samples = executor.execute(self, sigmas, extra_args, callback, noise, latent_image, denoise_mask, disable_pbar)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/patcher_extension.py", line 112, in execute
return self.original(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI-TiledDiffusion/utils.py", line 34, in KSAMPLER_sample
return orig_fn(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI_smZNodes/smZNodes.py", line 114, in KSAMPLER_sample
return orig_fn(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 744, in sample
noise = model_wrap.inner_model.model_sampling.noise_scaling(sigmas[0], noise, latent_image, self.max_denoise(model_wrap, sigmas))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/model_sampling.py", line 96, in noise_scaling
s = getattr(self, "noise_scale", 1.0)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: The size of tensor a (3640) must match the size of tensor b (475648) at non-singleton dimension 2

Prompt executed in 0.48 seconds
got prompt
!!! Exception during processing !!! The size of tensor a (3640) must match the size of tensor b (475648) at non-singleton dimension 2
Traceback (most recent call last):
File "/root/ComfyUI/execution.py", line 535, in execute
output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/execution.py", line 335, in get_output_data
return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/execution.py", line 309, in _async_map_node_over_list
await process_inputs(input_dict, i)
File "/root/ComfyUI/execution.py", line 297, in process_inputs
result = f(**inputs)
^^^^^^^^^^^
File "/root/ComfyUI/comfy_api/internal/__init__.py", line 149, in wrapped_func
return method(locked_class, **inputs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy_api/latest/_io.py", line 1833, in EXECUTE_NORMALIZED
to_return = cls.execute(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy_extras/nodes_custom_sampler.py", line 963, in execute
samples = guider.sample(noise.generate_noise(latent), latent_image, sampler, sigmas, denoise_mask=noise_mask, callback=callback, disable_pbar=disable_pbar, seed=noise.seed)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 1052, in sample
output = executor.execute(noise, latent_image, sampler, sigmas, denoise_mask, callback, disable_pbar, seed, latent_shapes=latent_shapes)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/patcher_extension.py", line 112, in execute
return self.original(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 995, in outer_sample
output = self.inner_sample(noise, latent_image, device, sampler, sigmas, denoise_mask, callback, disable_pbar, seed, latent_shapes=latent_shapes)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 981, in inner_sample
samples = executor.execute(self, sigmas, extra_args, callback, noise, latent_image, denoise_mask, disable_pbar)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/patcher_extension.py", line 112, in execute
return self.original(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI-TiledDiffusion/utils.py", line 34, in KSAMPLER_sample
return orig_fn(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI_smZNodes/smZNodes.py", line 114, in KSAMPLER_sample
return orig_fn(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 744, in sample
noise = model_wrap.inner_model.model_sampling.noise_scaling(sigmas[0], noise, latent_image, self.max_denoise(model_wrap, sigmas))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/model_sampling.py", line 96, in noise_scaling
s = getattr(self, "noise_scale", 1.0)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: The size of tensor a (3640) must match the size of tensor b (475648) at non-singleton dimension 2

Prompt executed in 0.54 seconds
got prompt
!!! Exception during processing !!! The size of tensor a (1200) must match the size of tensor b (163328) at non-singleton dimension 2
Traceback (most recent call last):
File "/root/ComfyUI/execution.py", line 535, in execute
output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/execution.py", line 335, in get_output_data
return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/execution.py", line 309, in _async_map_node_over_list
await process_inputs(input_dict, i)
File "/root/ComfyUI/execution.py", line 297, in process_inputs
result = f(**inputs)
^^^^^^^^^^^
File "/root/ComfyUI/comfy_api/internal/__init__.py", line 149, in wrapped_func
return method(locked_class, **inputs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy_api/latest/_io.py", line 1833, in EXECUTE_NORMALIZED
to_return = cls.execute(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy_extras/nodes_custom_sampler.py", line 963, in execute
samples = guider.sample(noise.generate_noise(latent), latent_image, sampler, sigmas, denoise_mask=noise_mask, callback=callback, disable_pbar=disable_pbar, seed=noise.seed)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 1052, in sample
output = executor.execute(noise, latent_image, sampler, sigmas, denoise_mask, callback, disable_pbar, seed, latent_shapes=latent_shapes)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/patcher_extension.py", line 112, in execute
return self.original(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 995, in outer_sample
output = self.inner_sample(noise, latent_image, device, sampler, sigmas, denoise_mask, callback, disable_pbar, seed, latent_shapes=latent_shapes)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 981, in inner_sample
samples = executor.execute(self, sigmas, extra_args, callback, noise, latent_image, denoise_mask, disable_pbar)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/patcher_extension.py", line 112, in execute
return self.original(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI-TiledDiffusion/utils.py", line 34, in KSAMPLER_sample
return orig_fn(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/custom_nodes/ComfyUI_smZNodes/smZNodes.py", line 114, in KSAMPLER_sample
return orig_fn(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/samplers.py", line 744, in sample
noise = model_wrap.inner_model.model_sampling.noise_scaling(sigmas[0], noise, latent_image, self.max_denoise(model_wrap, sigmas))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/ComfyUI/comfy/model_sampling.py", line 96, in noise_scaling
s = getattr(self, "noise_scale", 1.0)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: The size of tensor a (1200) must match the size of tensor b (163328) at non-singleton dimension 2

Prompt executed in 0.37 seconds
```

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LTX-2.3 official I2V workflow fails with SamplerCustomAdvanced tensor size mismatch.

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