Cant run generations
Custom Node Testing
- [x] I have tried disabling custom nodes and the issue persists (see how to disable custom nodes if you need help)
Expected Behavior
comfyui was supposed to generate the video using a template to generate the video
Actual Behavior
Steps to Reproduce
hunyuan_video_text_to_video.json
Debug Logs
H:\ComfyUI\advanced>..\python_embeded\python.exe -s ..\ComfyUI\main.py --windows-standalone-build --disable-api-nodes
Checkpoint files will always be loaded safely.
Total VRAM 12288 MB, total RAM 16306 MB
pytorch version: 2.9.0+cu130
Set vram state to: NORMAL_VRAM
Device: cuda:0 NVIDIA GeForce RTX 3060 : cudaMallocAsync
working around nvidia conv3d memory bug.
Using pytorch attention
Python version: 3.13.9 (tags/v3.13.9:8183fa5, Oct 14 2025, 14:09:13) [MSC v.1944 64 bit (AMD64)]
ComfyUI version: 0.3.68
ComfyUI frontend version: 1.28.8
[Prompt Server] web root: H:\ComfyUI\python_embeded\Lib\site-packages\comfyui_frontend_package\static
Import times for custom nodes:
0.0 seconds: H:\ComfyUI\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
Using pytorch attention in VAE
Using pytorch attention in VAE
VAE load device: cuda:0, offload device: cpu, dtype: torch.bfloat16
H:\ComfyUI\advanced>echo If you see this and ComfyUI did not start try updating your Nvidia Drivers to the latest.
If you see this and ComfyUI did not start try updating your Nvidia Drivers to the latest.
H:\ComfyUI\advanced>pause
Для продолжения нажмите любую клавишу . . .
Other
No response
It seems like an OOM issue; you only have 12GB VRAM, not enough for running the BF16 model. Can you try to change the weight_type to fp8_e4m3fn and try again?
You can also try the GGUF models https://huggingface.co/city96/HunyuanVideo-gguf/tree/main
you can put more virtual memory in your setting that what i did and it fixed all my crash. cause even with 32gb ram i was running into random crash with no error like you. here a tutorial how to do it https://www.youtube.com/watch?v=TmEs3PBF8EA. Uncheck automatic manage paging file size. Choose a disk that have alot of space cause it take some space for the virtual memory. When you know what disk you want then click on the disk then look a bit down you will see custom size click on it then enter those value: initial size: 24 576 and maximum size: 49 152 MB then apply restart. what it does is when you reach your maximum physical RAM it offload on your disk so your pc doesnt crash or any application. Down side is it will use your disk and slow down the pc(only in comfyui or heavy application that use alot of ram) a bit but no more crash. And also i would recommend what comfyui-wiki said.
If you don't like it you can still revert everything.