Blackjack, I agree about the AI break being tied to convergence. Mine is at 200 meters though

. I could have been more specific.
And yes, the AI in the demo and my FB game behave much differently. There are loads of other features that were apparently lost or broken over successive fixes that were not noticed. One thing is the lack of appearance of certain radio messages or server status messages, or the fact that if became impossible for AI to attack ships.
I have to wonder what parts of the game are bugged that may be totally invisible to us, but make big differences in the way things play out. One bug I've mentioned before is that if you shoot the wing of the SBD, the oil cooler under the nose starts to smoke. This can totally screw you over on long over-water flights, but you wouldn't necessarily realize that maybe you never really were hit in your oil cooler. (I found this bug out by accident when playing with the rear gunner and shooting at my own plane). What else lurks deep in the code?