You can write your topic however you want, but you need to answer these questions:
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What do you want to achieve? Fix the problem with the grid under the character when animating
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What is the issue? Include screenshots / videos if possible!
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What solutions have you tried so far? Re-rigging, checking HRP and Humanoid proporties. The problem disappears when HRP is anchored but then the character can’t move
After that, you should include more details if you have any. Try to make your topic as descriptive as possible, so that it’s easier for people to help you!