Ann Odd one?
 

On 2nd partrol from Wilmshaven. Been ordered to patrol Grid BF10. It doesn't appear on the Nav Map. There's BF11 on one side but on the other side we have a A grid ref , above is another A grid ref and below is a BF 20 something.

So I cannot complete this patrol. What happens next?

Suggestions please.

You don't need to go to the grid to complete the patrol. Don't think i've ever visited the patrol grid I was given once in.

Nothing happens. You don't get punnished for not following patrol orders by the game.

Do you use Silent Hunter 3 Commander, or not? It's probably a typo someone made. Either Ubisoft developers, or someone that modded the SilentHunterIII/data/cfg/flottila.cfg file. Since it is a text file it is easily fixed by replacing the location with something legit in the vicinity. (SH3 Commander has the data in the file stored somewhere else)

Ok thanks, it's something I've never come across before.