shoving between grappled ships..ugh!

[MghanOMorgan]

I have disabled 2 of the new French ships, only to have a war frigate (different one each time) cram between my ship (war sloop) and the French, shoving my ship far away (still grappled), bombing the daylights out of me, and making it impossible to cannon the French crew before boarding. I guess this is funny to some people, but without the chance to cannon the Ghost crew before boarding I don't stand a chance of sinking the ship. Both times I lost the opportunity to complete a quest. This is maddening! Any suggestions?