Well, I thought I had processed this turn correctly, according to the emails received. And yet, the Black Sea result seems flawed, and multiple tries with the Convoy system have not had a decent result.
I'm going to take a look at this thing and see if it needs YET ANOTHER revision from the developer of RP; if I have to continuously fix turns I will likely pitch RP in favor of another, more reliable tool. It's not the first time that has happened.
Too bad; I rather like RP's interface.
PS: In the meantime, please put a hold on negotiations.