So I don't know what the hell happened, I was trying to put a slot on a wooden crate and use a crowbar as the "key" and use an animation so it kinda looks like you're opening it with the crowbar.

The thing is: somehow the slot and the crowbar got infinitely duplicated in the editor (I couldn't delete them, I tried many times).

Then I playtested the map and went back to the editor and... the editor is frozen and VERY laggy and I can barely press anything (I can't even move around anymore), all I can do now is test my map and even some textures look weird now, like the simple square model has an "A" on the texture for some reason. Also while playtesting, the crowbar is still there and I can pick it up with no problem, but the slot isn't there anymore (but it still shows up in the editor...)

I closed and opened the game a few times and the problem persists, my map is 100% corrupted now because I was just trying to use a crowbar in a lock :( what am I supposed to do now?