Stop shipping plaintext. FiveSecured encrypts, obfuscates, and licenses your Lua resources so customers run your work without ever holding your source.
You can load the vehicles in single player, but those lines and screwed squares will appear and the vehicles are invisible, but it doesn't crash the game (if is not shown up all the time of course), i checked the hex file and text and it shows rsc7 which is readable format identical to rockstar models, my thought here is that somehow we could extract into Zmodeler, 3dsmax or blender and them reimport to see if fixes? idk