Ships don't dock...

[Vangelis]

I have found the solution to this bug.

It may seem strange, but I went crazy when my 40,000 gold War Galleon jammed like this.

So, here's what to do.

1. Kill yourself (pirate character of course)
2. Board your stuck ship. Attempt to stear. It won't let you, but you must try. Then fire a cannon so it recognises this.
3. Teleport off back onto Port Royal or Tortuga
4. Re-board, it will then be fixed!

Worked for me every time, and it crashed like this at least 8 times for me.