itch.io

If you turn on the DEBUG_MODE flag you'll get some helpful printouts in the "Output" window when you load a room (check out the player's Create Event + Alarm 1 event for the code that handles where to spawn).

I think what's happening here is, you saved the game in the now-deleted room, and then when the room doesn't exist anymore the fallback code in mev_title_continue_fileselected which spawns you in the lab might not work anymore if you've changed the layout. (Or if you re-created a room with the same name but a different layout, the saved position will be used but now be in the middle of the ocean)