The Skeleton duplication crash still has not been fixed. I have a project that uses the skeletion merge and it duplicates the skeletion and it crashes all the time. I figured one of these hotfixes would address this.
Hate to say, but it hasn’t. It still freezes and crashes when I try to use that pop-out window. So for now, i have just decided to get used to not using it, but this update somehow introduced another issue I ran into with grooms and animation, which i posted about Here