I had this problem before but I am not sure how I fixed it, I suspect it has something to do with changing windows resolution but I am not sure as I have yet to reinstall my pc and since I change my screen resolution a few times per day how can I fix this problem, the changing the res is causing this problem is an assumption on my part.
Notice on the gif below how as soon as I put it in full screen it keeps showing the last image on the background of the current.
My second question is normally when I used to browse through files on windowed mode the files with too big res used to get fitted to window but now it does which is making life hell because when I click the arrow left right up or down depending on the res it doesnt go to the next image but scrolls up or down the current image and page up and down wont allow me to go to the next page.
Im running version 4.42 64bit on Windows 10 Pro
Thanks for any answers