No longer working

I used this mod to break up a forum post with comments into several smaller forums posts with comments. That worked great, but I ended up getting the order of the posts/comments in one of the nodes all out of order. I'm trying to re-order it now and my pruning/grafting isn't working. It says it was successful, but the comments aren't getting moved.

I'm following the directions and trying to move certain comments below other comments in the same node.

Has there been any experience of this not working when the comments are out of chronological order or anything like that?