Possible bug when ending generation

Nobody has claimed this yet.

Edit: Framepack can still run normally even after such error occured, thus i ignored it and continue experimenting.

Traceback (most recent call last):
File "E:\framepack_cu126_torch26\webui\demo_gradio.py", line 241, in worker
generated_latents = sample_hunyuan(
File "E:\framepack_cu126_torch26\system\python\lib\site-packages\torch\utils\_contextlib.py", line 116, in decorate_context
return func(*args, **kwargs)
File "E:\framepack_cu126_torch26\webui\diffusers_helper\pipelines\k_diffusion_hunyuan.py", line 116, in sample_hunyuan
results = sample_unipc(k_model, latents, sigmas, extra_args=sampler_kwargs, disable=False, callback=callback)
File "E:\framepack_cu126_torch26\webui\diffusers_helper\k_diffusion\uni_pc_fm.py", line 141, in sample_unipc
return FlowMatchUniPC(model, extra_args=extra_args, variant=variant).sample(noise, sigmas=sigmas, callback=callback, disable_pbar=disable)
File "E:\framepack_cu126_torch26\webui\diffusers_helper\k_diffusion\uni_pc_fm.py", line 134, in sample
callback({'x': x, 'i': i, 'denoised': model_prev_list[-1]})
File "E:\framepack_cu126_torch26\webui\demo_gradio.py", line 232, in callback

So i've been experimenting with prompt, and when the result of 1s, 2s, or beyond is unsatisfactory, usually i just stop the generation using End Generation button. After several start-end cycle, i've experienced 2x black screen. I can shutdown windows gracefuly from power button (i set that power button triggers a shutdown from power management). How many cycles needed to produce this behavior is unknown.

Temporary solution:
end the terminal every several generation ending, and full system restart

I'm using:
Ryzen 5 5600G
GeForce RTX 3060 12GB Vram
16 GB Vram
650W PSU

latest update framepack running on windows 11, i have xformers, flash attention, and sage attention installed.

Start with the worker and callback in webui/demo_gradio.py, then trace the sampling path through webui/diffusers_helper/pipelines/k_diffusion_hunyuan.py and webui/diffusers_helper/k_diffusion/uni_pc_fm.py. Reproduce repeated uses of End Generation and inspect the traceback and system behavior. Done means the cause of the black screens is identified and repeated start-end cycles no longer produce the failure, with the relevant behavior verified.

Written by the indexing model from the issue text.