Whenever I weight paint on certain bones, patches of weight will appear on other bones. I'll then remove those patches but patches will appear on different bones again. Why does this happen? :
Erase Tool — Blender Manual
Editing — Blender Manual
Tools - Weight Painting - Blender Studio
Clean Up — Blender Manual
Erase Tool — Blender Manual
Is the invert command for weight painting functional? - User Feedback - Developer Forum