Hi,
Whenever I try to design a ship, when I click the save button the appearance of the ship is overwritten with either the first ship I designed, or the default fighter, no matter what hull size I'd picked - it just scales the ships up to match.
I heard it was just a corrupt file problem, and I should validate my game files through steam. I've done that several times, even completely reinstalled at one point. The bug still persists, though.