For some reason I can only have one column per row now. (I did update to 4.2.3 that was just released today.) I used to have 4 columns on each row, but now when I save, it'll delete all of them except for the first one tagged. I've tried re-uploading a fresh copy, but the problem still persists. I'm not sure if it's me or if an update needs to be made.
Preview of me saving it with multiple columns, and going to edit it again, only one on each row is left: