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Published 4 days ago • verified publisher icon ModelTC

[Bug] Video Output Is All Black When Using sage_attn2 with Wan2.1-I2V-14B-480P-StepDistill-CfgDistill-Lightx2v

Open luopeixiang opened this issue 4 months ago • 3 comments

I encountered an issue when using sage_attn2 together with the Wan2.1-I2V-14B-480P-StepDistill-CfgDistill-Lightx2v model. The generated video output is completely black in all frames.

This issue does not occur when using flash_attn2.

luopeixiang avatar Aug 12 '25 04:08 luopeixiang