Comfy-Org / Comfy-Org/ComfyUI

CLIPVisionEncode UR error: 45 (UR_RESULT_ERROR_INVALID_ARGUMENT)

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Potential Bug
Dominant language
Python
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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

Fixed bug

### Actual Behavior

Image

### Steps to Reproduce

Template -> 3D Model -> Hunyual3D 2.1 -> Upload Image (Node Load Image) -> Run -> Error

### Debug Logs

```powershell
# ComfyUI Error Report
## Error Details
- **Node ID:** 13
- **Node Type:** CLIPVisionEncode
- **Exception Type:** RuntimeError
- **Exception Message:** UR error: 45 (UR_RESULT_ERROR_INVALID_ARGUMENT)

## Stack Trace

File "D:\ConceptTo3D\comfy\ComfyUI\execution.py", line 510, 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, hidden_inputs=hidden_inputs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "D:\ConceptTo3D\comfy\ComfyUI\execution.py", line 324, 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, hidden_inputs=hidden_inputs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "D:\ConceptTo3D\comfy\ComfyUI\execution.py", line 298, in _async_map_node_over_list
await process_inputs(input_dict, i)

File "D:\ConceptTo3D\comfy\ComfyUI\execution.py", line 286, in process_inputs
result = f(**inputs)

File "D:\ConceptTo3D\comfy\ComfyUI\nodes.py", line 1031, in encode
output = clip_vision.encode_image(image, crop=crop_image)

File "D:\ConceptTo3D\comfy\ComfyUI\comfy\clip_vision.py", line 77, in encode_image
out = self.model(pixel_values=pixel_values, intermediate_output='all' if self.return_all_hidden_states else -2)

File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1775, in _wrapped_call_impl
return self._call_impl(*args, **kwargs)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^

File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1786, in _call_impl
return forward_call(*args, **kwargs)

File "D:\ConceptTo3D\comfy\ComfyUI\comfy\image_encoders\dino2.py", line 156, in forward
x = self.embeddings(pixel_values)

File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1775, in _wrapped_call_impl
return self._call_impl(*args, **kwargs)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^

File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1786, in _call_impl
return forward_call(*args, **kwargs)

File "D:\ConceptTo3D\comfy\ComfyUI\comfy\image_encoders\dino2.py", line 135, in forward
x = self.patch_embeddings(pixel_values)

File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1775, in _wrapped_call_impl
return self._call_impl(*args, **kwargs)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^

File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1786, in _call_impl
return forward_call(*args, **kwargs)

File "D:\ConceptTo3D\comfy\ComfyUI\comfy\image_encoders\dino2.py", line 120, in forward
return self.projection(pixel_values).flatten(2).transpose(1, 2)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^

File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1775, in _wrapped_call_impl
return self._call_impl(*args, **kwargs)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^

File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1786, in _call_impl
return forward_call(*args, **kwargs)

File "D:\ConceptTo3D\comfy\ComfyUI\comfy\ops.py", line 200, in forward
return self.forward_comfy_cast_weights(*args, **kwargs)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^

File "D:\ConceptTo3D\comfy\ComfyUI\comfy\ops.py", line 192, in forward_comfy_cast_weights
weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "D:\ConceptTo3D\comfy\ComfyUI\comfy\ops.py", line 112, in cast_bias_weight
bias = comfy.model_management.cast_to(s.bias, bias_dtype, device, non_blocking=non_blocking, copy=bias_has_function, stream=offload_stream)

File "D:\ConceptTo3D\comfy\ComfyUI\comfy\model_management.py", line 1093, in cast_to
return weight.to(dtype=dtype, copy=copy)
~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^

## System Information
- **ComfyUI Version:** 0.3.76
- **Arguments:** D:\ConceptTo3D\comfy\ComfyUI\main.py
- **OS:** win32
- **Python Version:** 3.13.7 (tags/v3.13.7:bcee1c3, Aug 14 2025, 14:15:11) [MSC v.1944 64 bit (AMD64)]
- **Embedded Python:** false
- **PyTorch Version:** 2.9.1+xpu
## Devices

- **Name:** xpu:0 Intel(R) UHD Graphics 770
- **Type:** xpu
- **VRAM Total:** 15549681664
- **VRAM Free:** 15549681664
- **Torch VRAM Total:** 0
- **Torch VRAM Free:** 0

## Logs

2025-12-02T10:33:55.824822 - [START] Security scan2025-12-02T10:33:55.824841 -
2025-12-02T10:33:56.506192 - [DONE] Security scan2025-12-02T10:33:56.506204 -
2025-12-02T10:33:56.579512 - ## ComfyUI-Manager: installing dependencies done.2025-12-02T10:33:56.579611 -
2025-12-02T10:33:56.579705 - ** ComfyUI startup time:2025-12-02T10:33:56.579761 - 2025-12-02T10:33:56.579805 - 2025-12-02 10:33:56.5792025-12-02T10:33:56.579836 -
2025-12-02T10:33:56.579870 - ** Platform:2025-12-02T10:33:56.579899 - 2025-12-02T10:33:56.579922 - Windows2025-12-02T10:33:56.579945 -
2025-12-02T10:33:56.579975 - ** Python version:2025-12-02T10:33:56.580002 - 2025-12-02T10:33:56.580025 - 3.13.7 (tags/v3.13.7:bcee1c3, Aug 14 2025, 14:15:11) [MSC v.1944 64 bit (AMD64)]2025-12-02T10:33:56.580050 -
2025-12-02T10:33:56.580079 - ** Python executable:2025-12-02T10:33:56.580107 - 2025-12-02T10:33:56.580130 - C:\Users\admin\AppData\Local\Programs\Python\Python313\python.exe2025-12-02T10:33:56.580154 -
2025-12-02T10:33:56.580182 - ** ComfyUI Path:2025-12-02T10:33:56.580208 - 2025-12-02T10:33:56.580231 - D:\ConceptTo3D\comfy\ComfyUI2025-12-02T10:33:56.580254 -
2025-12-02T10:33:56.580282 - ** ComfyUI Base Folder Path:2025-12-02T10:33:56.580309 - 2025-12-02T10:33:56.580331 - D:\ConceptTo3D\comfy\ComfyUI2025-12-02T10:33:56.580354 -
2025-12-02T10:33:56.580382 - ** User directory:2025-12-02T10:33:56.580409 - 2025-12-02T10:33:56.580432 - D:\ConceptTo3D\comfy\ComfyUI\user2025-12-02T10:33:56.580455 -
2025-12-02T10:33:56.580484 - ** ComfyUI-Manager config path:2025-12-02T10:33:56.580511 - 2025-12-02T10:33:56.580719 - D:\ConceptTo3D\comfy\ComfyUI\user\default\ComfyUI-Manager\config.ini2025-12-02T10:33:56.580748 -
2025-12-02T10:33:56.580777 - ** Log path:2025-12-02T10:33:56.580801 - 2025-12-02T10:33:56.580820 - D:\ConceptTo3D\comfy\ComfyUI\user\comfyui.log2025-12-02T10:33:56.580841 -
2025-12-02T10:33:57.235633 -
Prestartup times for custom nodes:
2025-12-02T10:33:57.235807 - 1.7 seconds: D:\ConceptTo3D\comfy\ComfyUI\custom_nodes\ComfyUI-Manager
2025-12-02T10:33:57.235929 -
2025-12-02T10:33:58.914647 - Checkpoint files will always be loaded safely.
2025-12-02T10:33:59.153254 - Total VRAM 14829 MB, total RAM 32509 MB
2025-12-02T10:33:59.153417 - pytorch version: 2.9.1+xpu
2025-12-02T10:33:59.153784 - Set vram state to: NORMAL_VRAM
2025-12-02T10:33:59.153920 - Device: xpu:0 Intel(R) UHD Graphics 770
2025-12-02T10:34:00.460917 - Using pytorch attention
2025-12-02T10:34:02.702074 - Python version: 3.13.7 (tags/v3.13.7:bcee1c3, Aug 14 2025, 14:15:11) [MSC v.1944 64 bit (AMD64)]
2025-12-02T10:34:02.702233 - ComfyUI version: 0.3.76
2025-12-02T10:34:02.719900 - ComfyUI frontend version: 1.33.10
2025-12-02T10:34:02.721168 - [Prompt Server] web root: C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\comfyui_frontend_package\static
2025-12-02T10:34:03.288101 - Total VRAM 14829 MB, total RAM 32509 MB
2025-12-02T10:34:03.288450 - pytorch version: 2.9.1+xpu
2025-12-02T10:34:03.288979 - Set vram state to: NORMAL_VRAM
2025-12-02T10:34:03.289285 - Device: xpu:0 Intel(R) UHD Graphics 770
2025-12-02T10:34:03.809193 - ### Loading: ComfyUI-Manager (V3.37.2)
2025-12-02T10:34:03.809775 - [ComfyUI-Manager] network_mode: public
2025-12-02T10:34:03.925821 - ### ComfyUI Version: v0.3.76-3-gb4a20acc | Released on '2025-12-01'
2025-12-02T10:34:04.157896 -
Import times for custom nodes:
2025-12-02T10:34:04.158090 - 0.0 seconds: D:\ConceptTo3D\comfy\ComfyUI\custom_nodes\websocket_image_save.py
2025-12-02T10:34:04.158721 - 0.4 seconds: D:\ConceptTo3D\comfy\ComfyUI\custom_nodes\ComfyUI-Manager
2025-12-02T10:34:04.158870 -
2025-12-02T10:34:04.296778 - [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/alter-list.json
2025-12-02T10:34:04.304343 - [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/model-list.json
2025-12-02T10:34:04.373188 - [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/github-stats.json
2025-12-02T10:34:04.438518 - [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/extension-node-map.json
2025-12-02T10:34:04.481395 - Context impl SQLiteImpl.
2025-12-02T10:34:04.481694 - Will assume non-transactional DDL.
2025-12-02T10:34:04.483203 - [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/custom-node-list.json
2025-12-02T10:34:04.484383 - No target revision found.
2025-12-02T10:34:04.774971 - Starting server

2025-12-02T10:34:04.775354 - To see the GUI go to: http://127.0.0.1:8188
2025-12-02T10:34:08.514699 - FETCH ComfyRegistry Data: 5/1092025-12-02T10:34:08.515231 -
2025-12-02T10:34:12.757045 - FETCH ComfyRegistry Data: 10/1092025-12-02T10:34:12.757256 -
2025-12-02T10:34:16.620414 - [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.
2025-12-02T10:34:16.622814 - [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.
2025-12-02T10:34:16.817557 - [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.
2025-12-02T10:34:16.836532 - [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.
2025-12-02T10:34:17.527656 - FETCH ComfyRegistry Data: 15/1092025-12-02T10:34:17.527906 -
2025-12-02T10:34:21.788480 - FETCH ComfyRegistry Data: 20/1092025-12-02T10:34:21.788943 -
2025-12-02T10:34:26.108784 - FETCH ComfyRegistry Data: 25/1092025-12-02T10:34:26.108946 -
2025-12-02T10:34:30.615514 - FETCH ComfyRegistry Data: 30/1092025-12-02T10:34:30.615643 -
2025-12-02T10:34:34.875235 - FETCH ComfyRegistry Data: 35/1092025-12-02T10:34:34.875618 -
2025-12-02T10:34:39.123682 - FETCH ComfyRegistry Data: 40/1092025-12-02T10:34:39.124148 -
2025-12-02T10:34:43.867218 - FETCH ComfyRegistry Data: 45/1092025-12-02T10:34:43.867664 -
2025-12-02T10:34:48.452306 - FETCH ComfyRegistry Data: 50/1092025-12-02T10:34:48.452678 -
2025-12-02T10:34:52.800355 - FETCH ComfyRegistry Data: 55/1092025-12-02T10:34:52.800877 -
2025-12-02T10:34:57.135180 - FETCH ComfyRegistry Data: 60/1092025-12-02T10:34:57.135502 -
2025-12-02T10:35:01.402026 - FETCH ComfyRegistry Data: 65/1092025-12-02T10:35:01.402462 -
2025-12-02T10:35:06.150861 - FETCH ComfyRegistry Data: 70/1092025-12-02T10:35:06.151231 -
2025-12-02T10:35:10.859647 - FETCH ComfyRegistry Data: 75/1092025-12-02T10:35:10.860306 -
2025-12-02T10:35:15.200725 - FETCH ComfyRegistry Data: 80/1092025-12-02T10:35:15.201061 -
2025-12-02T10:35:19.546851 - FETCH ComfyRegistry Data: 85/1092025-12-02T10:35:19.547449 -
2025-12-02T10:35:24.275729 - FETCH ComfyRegistry Data: 90/1092025-12-02T10:35:24.276158 -
2025-12-02T10:35:28.605282 - FETCH ComfyRegistry Data: 95/1092025-12-02T10:35:28.605804 -
2025-12-02T10:35:32.956097 - FETCH ComfyRegistry Data: 100/1092025-12-02T10:35:32.956308 -
2025-12-02T10:35:38.482783 - FETCH ComfyRegistry Data: 105/1092025-12-02T10:35:38.482959 -
2025-12-02T10:35:42.425415 - FETCH ComfyRegistry Data [DONE]2025-12-02T10:35:42.425712 -
2025-12-02T10:35:42.547352 - [ComfyUI-Manager] default cache updated: https://api.comfy.org/nodes
2025-12-02T10:35:42.559690 - FETCH DATA from: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/custom-node-list.json2025-12-02T10:35:42.559798 - 2025-12-02T10:35:42.854244 - [DONE]2025-12-02T10:35:42.854467 -
2025-12-02T10:35:42.898984 - [ComfyUI-Manager] All startup tasks have been completed.
2025-12-02T10:36:53.096071 - got prompt
2025-12-02T10:36:56.082930 - model weight dtype torch.float16, manual cast: None
2025-12-02T10:36:56.083452 - model_type FLOW
2025-12-02T10:37:57.509216 - VAE load device: xpu:0, offload device: cpu, dtype: torch.float16
2025-12-02T10:37:57.516792 - loaded diffusion model directly to GPU
2025-12-02T10:37:57.517799 - Requested to load Hunyuan3Dv2_1
2025-12-02T10:37:57.550953 - loaded completely; 95367431640625005117571072.00 MB usable, 5818.86 MB loaded, full load: True
2025-12-02T10:37:58.124816 - Requested to load Dinov2Model
2025-12-02T10:37:58.384335 - loaded completely; 7591.24 MB usable, 577.86 MB loaded, full load: True
2025-12-02T10:37:58.673585 - !!! Exception during processing !!! UR error: 45 (UR_RESULT_ERROR_INVALID_ARGUMENT)
2025-12-02T10:37:58.762421 - Traceback (most recent call last):
File "D:\ConceptTo3D\comfy\ComfyUI\execution.py", line 510, 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, hidden_inputs=hidden_inputs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\ConceptTo3D\comfy\ComfyUI\execution.py", line 324, 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, hidden_inputs=hidden_inputs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\ConceptTo3D\comfy\ComfyUI\execution.py", line 298, in _async_map_node_over_list
await process_inputs(input_dict, i)
File "D:\ConceptTo3D\comfy\ComfyUI\execution.py", line 286, in process_inputs
result = f(**inputs)
File "D:\ConceptTo3D\comfy\ComfyUI\nodes.py", line 1031, in encode
output = clip_vision.encode_image(image, crop=crop_image)
File "D:\ConceptTo3D\comfy\ComfyUI\comfy\clip_vision.py", line 77, in encode_image
out = self.model(pixel_values=pixel_values, intermediate_output='all' if self.return_all_hidden_states else -2)
File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1775, in _wrapped_call_impl
return self._call_impl(*args, **kwargs)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1786, in _call_impl
return forward_call(*args, **kwargs)
File "D:\ConceptTo3D\comfy\ComfyUI\comfy\image_encoders\dino2.py", line 156, in forward
x = self.embeddings(pixel_values)
File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1775, in _wrapped_call_impl
return self._call_impl(*args, **kwargs)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1786, in _call_impl
return forward_call(*args, **kwargs)
File "D:\ConceptTo3D\comfy\ComfyUI\comfy\image_encoders\dino2.py", line 135, in forward
x = self.patch_embeddings(pixel_values)
File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1775, in _wrapped_call_impl
return self._call_impl(*args, **kwargs)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1786, in _call_impl
return forward_call(*args, **kwargs)
File "D:\ConceptTo3D\comfy\ComfyUI\comfy\image_encoders\dino2.py", line 120, in forward
return self.projection(pixel_values).flatten(2).transpose(1, 2)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1775, in _wrapped_call_impl
return self._call_impl(*args, **kwargs)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "C:\Users\admin\AppData\Local\Programs\Python\Python313\Lib\site-packages\torch\nn\modules\module.py", line 1786, in _call_impl
return forward_call(*args, **kwargs)
File "D:\ConceptTo3D\comfy\ComfyUI\comfy\ops.py", line 200, in forward
return self.forward_comfy_cast_weights(*args, **kwargs)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "D:\ConceptTo3D\comfy\ComfyUI\comfy\ops.py", line 192, in forward_comfy_cast_weights
weight, bias, offload_stream = cast_bias_weight(self, input, offloadable=True)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\ConceptTo3D\comfy\ComfyUI\comfy\ops.py", line 112, in cast_bias_weight
bias = comfy.model_management.cast_to(s.bias, bias_dtype, device, non_blocking=non_blocking, copy=bias_has_function, stream=offload_stream)
File "D:\ConceptTo3D\comfy\ComfyUI\comfy\model_management.py", line 1093, in cast_to
return weight.to(dtype=dtype, copy=copy)
~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: UR error: 45 (UR_RESULT_ERROR_INVALID_ARGUMENT)

2025-12-02T10:37:58.771255 - Prompt executed in 65.67 seconds

## Attached Workflow
Please make sure that workflow does not contain any sensitive information such as API keys or passwords.

{"id":"4125c6df-9bca-430d-8e85-7cff9cc592d4","revision":0,"last_node_id":18,"last_link_id":22,"nodes":[{"id":1,"type":"ImageOnlyCheckpointLoader","pos":[541.999909261174,-754.0001904558328],"size":[403.625,159.59375],"flags":{},"order":0,"mode":0,"inputs":[{"localized_name":"ckpt_name","name":"ckpt_name","type":"COMBO","widget":{"name":"ckpt_name"},"link":null}],"outputs":[{"localized_name":"MODEL","name":"MODEL","type":"MODEL","links":[16]},{"localized_name":"CLIP_VISION","name":"CLIP_VISION","type":"CLIP_VISION","links":[20]},{"localized_name":"VAE","name":"VAE","type":"VAE","links":[18]}],"properties":{"cnr_id":"comfy-core","ver":"0.3.59","Node name for 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## Additional Context
(Please add any additional context or steps to reproduce the error here)
```

### Other

Total VRAM 14829 MB, total RAM 32509 MB
pytorch version: 2.9.1+xpu
Set vram state to: NORMAL_VRAM
Device: xpu:0 Intel(R) UHD Graphics 770
Using pytorch attention
Python version: 3.13.7 (tags/v3.13.7:bcee1c3, Aug 14 2025, 14:15:11) [MSC v.1944 64 bit (AMD64)]
ComfyUI version: 0.3.76
ComfyUI frontend version: 1.33.10

Contributor guide

Open the contributing guide

Research direction

Start with comfy/clip_vision.py and follow the CLIPVisionEncode path into comfy/image_encoders/dino2.py. Inspect comfy/ops.py and comfy/model_management.py around cast_bias_weight and cast_to, then reproduce the Hunyuan3D 2.1 workflow on the Intel XPU setup described. Done means the image encoder runs without UR_RESULT_ERROR_INVALID_ARGUMENT.

Written by the indexing model from the issue text.

Assessment

Tech stack
python, pytorch
Domain
backend, machine-learning
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
42/100

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