Ok, I won't yet, for I'm not sure WHAT exactly the problem is.But it doesn't seem to do anything with this one, so I'll make a separate thread.
In brief, when you get caught, the summoned guards not always behave as they should. Sometimes they just stand there near the boat, stuck in the sea and doing nothing. But I can talk to them and fight them.
And sometimes they are complete ghosts, who are only good at blocking the path.
Doesn't seem to do anything with the fix, as I've seen that before.
I'll investigate further and THEN I'll create a new thread.