I just came across a similar issue–I have 2 folders called GAMES, one in a youtube subfolder and one in the main folder. When I tried to move a feed from one to the other, it wouldn’t move, whether by using the “move to folder” command or by using the organize menu. I also tried renaming one of the folders but both folders changed their name! Seems to be some issue with distinguishing between subfolders of the same name in different “super-folders”.
EDIT: I was able to rename them after all! I don’t know what changed exactly, I refreshed the page and renamed each folder into something else, and it seems like it “stuck” that time. I’ll leave this up since there was something weird going on but my problem is fixed at this point.