The output video gives black frames.
Nice, but doesn't work.
Did you even test it before uploading it to the public?
what version of pytorch is installed on your env? do u use sage attention? ur problem has nothing to do with the models
2.6，3.12，no Sage Attention, still black .hy15_480p_i2v_cfg_distilled_fp8_e4m3_lightx2v.safetensors
Got black output, but models from ComfyUI (https://huggingface.co/Comfy-Org/HunyuanVideo_1.5_repackaged/tree/main/split_files/diffusion_models) are working in the same workflow.
The models here are indeed not intended for ComfyUI use, they are for the lightx2v inference codebase: https://github.com/ModelTC/LightX2V
Like mentioned above, use the ones in comfy-org repo: https://huggingface.co/Comfy-Org/HunyuanVideo_1.5_repackaged/tree/main/split_files/diffusion_models
Same issue.
Same issue.
you're using wrong model
re-download https://huggingface.co/Comfy-Org/HunyuanVideo_1.5_repackaged/tree/main/split_files/diffusion_models