The Floor is Jelly

The "Wait -- I think I dropped my wallet back there" achievement has been broken and bugged since at least 2018 without ever getting any patches to fix it. This has caused me so much trouble that I can't even get the game to launch anymore, it just opens to a buggy version of the tutorial screen with the character spazzing out. The achievement isn't possible on the most up to date version of the game, so I've tried redownloading an old version with the Steam console and playing that... which seemed fine and all, but then playing the game in reverse with Steam being in offline mode didn't actually give me the achievement, so I come back online and then... nothing, it still won't give the achievement. Somewhere along the lines, I guess deleting the saves from appdata or the Steam folders themselves broke the game, because validating the game doesn't show any problems and it still won't work now. (Managed to get the game working again with Steam cloud, no clue what I would've done had that not helped.) By far one of the most unenjoyable experiences I've had on Steam to date, and it's not even specifically the game's fault.. it's a pretty good game all things considered, has a really nice soundtrack, decent enough gameplay and pretty (albeit simple) visuals. But the achievement is so not worth how much anger and frustration this game has caused me trying to get it. It's not even a hard achievement, it just literally doesn't work.