Maps Disappearing

Every time since the first time I’ve GM’d my game, new maps just seem to disappear. It seems in between those times launching the game, there has been an update. I’ve checked all of the files and they’re simply gone as if they were temporary. I tried to run a backup from when I made the maps and they’re gone there too. All Occam’s Razor solutions have been tried. It’s likely client side imo, but I have no way to know since I can’t get any kind of bug report or history to show.