I thought you might be interested in looking at Problem "vertices of bone X are shared with parent bone Y".
https://forums.bohemia.net/forums/topic/216273-problem-vertices-of-bone-x-are-shared-with-parent-bone-y/?do=findComment&comment=3285684
× Pasted as rich text. Restore formatting
Only 75 emoji are allowed.
× Your link has been automatically embedded. Display as a link instead
× Your previous content has been restored. Clear editor
× You cannot paste images directly. Upload or insert images from URL.