I installed Optifine and wanted to use the Randomobs option, so over the course of several hours I collected and created a ton of mobs skins to use. I put the "mob" folder in the "assets" folder, started up the game, and then spawned a few zombies to test out the function. It didn't work, so I quit the game and went to check the assets folder - my "mob" folder was GONE.
I've searched my recycling bin, all other folders, the open recent function, but there's nothing. Was this supposed to happen? Should I have known to make a backup before putting something in the Assets folder? And how can I get it back?
If I can't retrieve that folder, I'm going to be really upset that I spent hours making it only for it to disappear instantly.