So, are you seeing images in the grid, or is this exhibited in some other way? Can you send a screenshot, or let me know how this is impacting your experience with the app?
Beta 6 seems to have fixed the issues I mentioned. I now have thumbnails in the files listing but I still see a small box that says “missing” in each file, though nothing seems to be missing. Directory paths seem to stay put. All in all a better experience.