Hello! When I try to delete this bone that I misplaced, all the other layers get deleted. Same thing happens when I ctrl+Z : instead of just undoing the bone, it undoes everything I just opened. I'm on windows. I checked the list and I don't think this has been reported yet.

Update: I can't cut and past things either. It doesn't cut the target, and makes it disappear when I paste it. It also always puts the bone as the child of the last layer I have, and not the one i'm targetting. (edit: added an issue and typo fix)

Hey, thank you for the report, it's possible to have the project ? Seems I never reproduce such strange behavior with deletion.