So upon visiting Lindblum for the first time, I went to the Tantalus Hideout, had Garnet's ATE, met the two kids, everything went fine. After that I headed downstairs and had the event with Lowell. After that I headed back up and decided to re-enter the Tantalus Hideout to check in case I'd missed something - upon transition I had the game crash for the first time.

Crash log files follow: