@Senator_Armstrong
I know that feel!
I only have one Windows machine, but I know precisely what you're talking about: I have a directory with old photos that I've never sorted and every single time I open it, it starts sorting them again — and sometimes still gets it wrong, stops halfway and appends the rest, even the newer files to the end of the list.
I don't even know why this happens, it looks like its indexer is broken, sometimes it just stops generating thumbnails for images and the easiest way to fix it is to log our and log in again. There is a process you can kill so that it relaunches that thing, but I always forget its name.
@Dicey @Humpleupagus @Owl @n3f_X