How can I delete vertex colors in batch

I don’t know what I did wrong. I can’t delete it in batch

bandicam 2022-02-20 22-18-03-388_20220220222426

I dont think you have create them by accident, i did not know how to and it is not the default name “Col”.

Anyway you can use a script for it:

My operation steps: import FBX externally, separate P first and obtain 100 submesh. It is found that vertex colors cannot be deleted in batch.

If it is created in blender, it can be deleted in batch, but I selected several models and deleted all vertex colors in batch. It’s strange.