I think they are already on this one.
In my first game, insane, Terans, it was working perfectly when I was operating surveyors manually. It was warning me of pirates and the battle viewer was working. My surveyor was sort of drifting aimlessly during the battle but all weapons were firing.
When I switched to auto survey, it stopped warning me and went directly to the battle viewer, but it did not lock up.
In my next game I was playing as a custom faction on a large map. On auto survey, I got no warning and my surveyor was not firing any weapons, just flying around taking pirate fire. I guess it was shooting something because I won the battle. Next time different surveyor, with all hit points and the same weapons compliment, same behavior but my ship was destroyed.
Next time the game locked up after asking me to start battle. I was able to restart from an autosave and I fleeted up my surveyors with a couple of escorts. I have been waiting to see what happens but so far, no pirates.