Why are color circles randomly appearing in some of my videos in my ComfyUI MiniMax_H3?

### Custom Node Testing

- [ ] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)

### Your question

Why are color circles randomly appearing in some of my videos in my ComfyUI MiniMax_H3 image to video?

### Logs

```powershell

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### Other

_No response_

The report names ComfyUI MiniMax_H3 image-to-video output but provides no source file, test, or usable logs. First reproduce with custom nodes disabled as requested, then collect the workflow, model and version, inputs, and an example video; done means identifying a reproducible cause or documenting the details needed to reproduce one.

Written by the indexing model from the issue text.