Apparently there are a bunch of different AES keys rocket league uses, not just one. You can get a list of them from the psynet config url, and then do some weird crc stuff to change them from “content keys” to aes keys. I discovered the rocket league mapmaking discord today and I’m blown away by the amount of information on there, and also apparently my whole thing about the unknown bytes when licensee version > 32 was straight up wrong, which is funny.
Anyways it works for all items now, which is great. I’m gonna work on actually putting it in rlbuddy now, hopefully that goes well