Crash with image previews in KSampler nodes about comfyui HOT 7 OPEN

this also happens to me

from comfyui.

Also, using "normal" scheduler (e.g. instead of "karras") doesn't crash but always yields noise or a black image.

from comfyui.

well, whatever I use, even with preview disabled, after a certain number of steps (20-30) the result is a black image.

Also tried reverting to ComfyUI from 10 days ago and it still happens. Also tried with no custom nodes loaded and this still happens. Not sure what triggered this.

from comfyui.

Also getting this which may be related:

0%| | 0/30 [00:00<?, ?it/s]
/.../python3.10/site-packages/torchsde/_brownian/brownian_interval.py:608: UserWarning: Should have tb<=t1 but got tb=14.614643096923828 and t1=14.614643.
warnings.warn(f"Should have {tb_name}<=t1 but got {tb_name}={tb} and t1={self._end}.")

from comfyui.

Ok an extra data point: when showing the previews, sometimes it shows all noise and sometimes it shows the actual preview. I think this may be some sort of race condition when showing previews, but again, not sure what triggered this.

I pulled the version 10 days ago, still the error, I recreated venv from scratch, still the error, I removed all custom nodes, still the error...

from comfyui.

more details: this is when showing pictures in the UI: when comfyui doesn't crash, the pictures sometimes show blank in the previews or even in the save image node, but the actual image is exported properly.

from comfyui.

Possibly related: #3521

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