If you see that "Read-only" check mark there, clear that, OK your way out and re-do the LAA. If that does NOT do the trick, post in the FotRSU thread, and give us your boat, the date, and your home port that you are sailing back into. A few players have encountered some bad assignments, and since the assignments are given when you "dock" the sub, that would be when the CTD would occur. But make certain that LAA is properly applied first.