Yep it's back but it's different this time.
Every time I'd blockade the AI's ports play for 10 turns or so they'd still be blockaded. Save the game, load it up the next day and bam mass rally's. Every time I reload the game the AI seems to make better decisions. It appears for a proper AI you need to reload every turn.
I'm guessing you can blockade a port full of ships of the line with 1 sloop and it will remain blockaded until you reload.
AI ships at sea don't seem to be bugged if they see decent odds they will attack a blockading fleet.
So it appears the AI ships in port have trouble making decisions until a reload
