First-Frame Color Shift in Wan 2.2 Animate LoRA Fine-Tuning

[gugite]

I am trying to fine-tune a LoRA for Wan 2.2 Animate using skeleton, RGB, and face videos together. However, I’ve noticed a severe color shift occurring in the first frame. The rest frames are good.

lora_1k.mp4

Could there be any potential reasons for this issue? Thank you!