I just entered a Pirate Base with my titan (I was playing TEC Loyalist so no research enabled that made me friends with the pirates) after it was obliterated by someone's Novalith Warhead. So the pirates in the game were no longer active, yet the turrets and ships in that Pirate Bases' gravity well were still all there.
The ships assaulted my Ankylon as they always do, but the turrets were just doing nothing, not even when my Ankylon was well in their firing range. This should of course be fixed.