I played that with 2.9.1 and with 3.0.1 and didn't run into any issues. I assume it's the scene where the MC tries to leave. The event in question is EV004 and the Movement Route for the Player is:
- Move Left
- Turn Down
- Move Down
- Move Down
which should bring him to the exit. It's fully automated without user input and continues after that. Don't really see what could go wrong there.
Maybe a savegame would help to replicate it.