Comfy UI stuck on KSampler

[rohansandhir]

Custom Node Testing

• I have tried disabling custom nodes and the issue persists (see how to disable custom nodes if you need help)

Your question

ComfyUI seems to be stuck at KSampler. Tried my best to do whatever I can.

This is what the CMD Window looks like:

Device: cuda:0 NVIDIA GeForce RTX 3060 : cudaMallocAsync
Using pytorch attention
Python version: 3.13.6 (tags/v3.13.6:4e66535, Aug 6 2025, 14:36:00) [MSC v.1944 64 bit (AMD64)]
ComfyUI version: 0.3.51
ComfyUI frontend version: 1.25.9
[Prompt Server] web root: C:\Users\rsandhir\Downloads\ComfyUI_windows_portable_nvidia\ComfyUI_windows_portable\python_embeded\Lib\site-packages\comfyui_frontend_package\static

Import times for custom nodes:
0.0 seconds: C:\Users\rsandhir\Downloads\ComfyUI_windows_portable_nvidia\ComfyUI_windows_portable\ComfyUI\custom_nodes\websocket_image_save.py

Context impl SQLiteImpl.
Will assume non-transactional DDL.
No target revision found.
Starting server

To see the GUI go to: http://127.0.0.1:8188
got prompt
model weight dtype torch.float16, manual cast: None
model_type EPS
Using pytorch attention in VAE
Using pytorch attention in VAE
VAE load device: cuda:0, offload device: cpu, dtype: torch.bfloat16
CLIP/text encoder model load device: cuda:0, offload device: cpu, current: cpu, dtype: torch.float16
Requested to load SD1ClipModel
loaded completely 9841.8 235.84423828125 True
Requested to load BaseModel
loaded completely 9559.83067779541 1639.406135559082 True
0%|

Logs

Other

No response

[MaggotHATE]

Same issue, reported here: #9420
Interestingly, 3060 too.

[rohansandhir]

Ok, after trying out lot of things, it seems that when I updated the drivers on my Graphics card, it has started working.