Ok, the hotbar resize problem is caused by the same change that brought the move problem. I'll upload a fixed version shortly.
I could find nothing wrong with the move area, however. It should look like this (upper right corner):
Regarding the persona window backdrops I think GU27 may have caused the white area problem if the necessary image files are not present (or I did bad testing when I designed it). I see no other solution except making the background images mandatory. I will still keep them as a separate download, however. They will not likely be changing, meaning you will only need to download them once (if you had downloaded v2.8.0, you already have them).