For some reason, sometimes buyback doesn't work.

This isn't the special ships or bus parts problem. I was in sec 7 and my setup was a warthog, prox mines and seekers. I died in 4, got dumped back to 7 station, and rebought. Well, it bought the Warthog and then stopped on that screen. No buying the other stuff or configuring weapons, etc. I had to quit the game and restart to get it to work again.

I've had this problem with multiple hulls and configs and in more than one sector.

I also had problems where it would buy extra engines and batteries for my last ship. But this may have been due to lag, or clicking "Yes" (or typing "y") one too many times. I hope there'll be a fix to prevent accidental excessive purchase of buyback items.