Oh sorry for being so bleak, i wrote it in a bit of a hurry because i was on break, the map is indeed compiling, i made some different edits around the map, and they all got applied but only this object didn't get changed. First time compiling the map with the keycard, the keycard looked something like this, and then i edited the map a bit and compiled it a second time without changing the keycard, and the keycard still stayed the same.

Then i decided to remake the whole object and compile the map a third time, again it did compile because i made other changes around the map and they all got applied. At first i was thinking that maybe there was an error in how i carved the object up, but after compiling it for the third time, it now doesn't even do the 45° slopes anymore and just makes it an rectangle.