video frames all blank

[ChaceYoung]

I've tried LTX-2.3_ICLoRA_Union_Control_Distilled workflow, with canny edge as control net input.
I found that all output frames are blank, and the latent tensors contain lots of nan values after SamplerCustomAdvanced node.
how to fix this?
THX a lot.

[BarnabasTakacs]

Hello,

I have similar issues with another ComfyUI template workflow video_ltx2_3_flf2v.json Even when simply inputting two frames with original 1280x720 resolution, the outputs are black. I suspect it is a quiet GPU memory failure, the nodes run, but zero output.
Config is a dual 3090RTX 24G

Any suggestion to fix these issues?
Thank you in advance.