Unfortunately I was and still am in fullscreen, though I appreciate the attempt to help(I did go double check just in case my memory was faulty, but no such luck). If a save slot is empty(on the bottom row), it doesn't block my ability to click the page numbers and/or arrows under it. But if it has a save file in the slot, then mousing over the page numbers and/or arrows does not highlight them, nor select them if clicked, but instead the save file above them.
Edit: Have attached two screen snips, though it removed my cursor from the second one sadly, the save slot in the bottom left in this case blocks the left arrow and the Autosave page, and so on.