Why isn't the bone staying aligned?

[BobSynfig]

Topic closed in order to avoid duplicates, as a repost as been created here:

Bone alignment issue Re-Post

I am very sorry to have to re-post this. I’ve spent over a week trying to fiddle around and I still can’t solve the problem. My original post got no replies, so I hope it isn’t against the rules to repost a question like this. Original: [image] [image] “Yesterday the bones were working fine, and a finished a small animation using the same body parts as I am now. Initially, I applied no mask since these are already transparent and I wanted to see if I could save time. The bones didn’t work. …