CODE 4, NO FURTHER UNITS REQUIRED
So um, as we know, LML loads mods a bit different, but I went in through the UI and disabled all mods that I had downloaded, and saved changes. For some reason or another, the car mod I downloaded last night... the one that I patrolled for 40 minutes with last night, has gone wonky this morning, and disabling it through the UI didn't fix everything. Only after DELETING the vehicle from the downloads folder nominated for LML to use was I able to launch.
Because computers.