This one seems to be connected to the animation of the door (not the big vault door, the inner door that's inside) being closed upon entering. If you play that save in vanilla, enter the vault, have the animation of the door closing play, leave vault (with the door closed), make a new save and then try that save in RE, you will be able to enter V13 without crashing. But maybe there's more at play.
I've already been to V13, I was just checking whether the Enclave invaded.
Edit: On second thought if you in the "repaired" savefile open the door and leave with it being open, then reenter, the animation of it being closed is again played, but the game won't crash. So it must be something else why it crashes in the original savefile.
SLOT08.zip
When entering V13.
This one seems to be connected to the animation of the door (not the big vault door, the inner door that's inside) being closed upon entering. If you play that save in vanilla, enter the vault, have the animation of the door closing play, leave vault (with the door closed), make a new save and then try that save in RE, you will be able to enter V13 without crashing. But maybe there's more at play.
I've already been to V13, I was just checking whether the Enclave invaded.
Edit: On second thought if you in the "repaired" savefile open the door and leave with it being open, then reenter, the animation of it being closed is again played, but the game won't crash. So it must be something else why it crashes in the original savefile.