Curious one this: Windows 10 64. I THINK I'm ironing out as many of the glitches as I can, but there's one strange one I can't get rid. It only happens in one folder as well. Basically as you all know Windows builds up an iconcache for thumbnails, so it remembers when you return to that folder. This works fine in my photos and media and basically everywhere, EXCEPT one folder which contains a LOT of self-contained exes. Apps, basically. Half of these files have the UAC yellow and blue admin rights shield over them, and the other half don't. And EVERY time I go in the icons' thumbails, after having slowly loaded the last time, are all gone again and I have to wait again. It's cosmetic, and not deal-breaking, but it's annoying. I've tried rebuilding iconcache once or twice but it doesn't fix this particular folder. Any ideas?
You mention executables so it may be waiting on Defender to finish it's background scanning of the files in question instead of them not being cached. I get that with larger executables such as Nvidia drivers it sometimes takes a second for it to go through them.
You can check which template this folder has in properties dialog (documents, photos, music etc) and try to switch.