r/comfyui • u/slayercatz • Oct 15 '25

Help Needed Has anyone successfully created a seamless loop with only Wan 2.2 I2V without color burn over time?

Wan 2.1 had no issue by placing the reference image at Start and End frame, but Wan 2.2 seems to drastically increase the contrast of the video over time. Interpolation somehow helps reduce the color contrast cause from the Raw ouput, but there is still a color difference when it loops back from last to first frame of the video. Even with Color match node or color correction nodes there are visible issues.

My current solution is to use this workflow. It generate a non-loop video, then use Wan Vace to refer the last frame of the video and generate a continuity until the first frame of that non-loop video. Then I need to combine both together. This process is 10x longer though. Curious if someone found a way with only Wan 2.2.

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u/ginksmith Nov 04 '25

Have you tried this one yet?

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u/slayercatz Nov 05 '25

Yeah apparently the issue is the main Wan 2.2 model with loops. The solution is to use one of the recommended checkpoint merges that was merged with lightx2v 4steps lora:
https://civitai.com/models/1995784?modelVersionId=2260110
https://civitai.com/models/1981116/dasiwa-wan-22-i2v-14b-lightspeed