Impenetra Either something's wrong with your game or you did something wrong. Check your player settings.
Or could it be you built it with for example under StarTrek and loaded under Terran?
Ship classes can't be used with each other. Bounty Hunter mode also does not allow anything other than Terran. The ship classes in the mod are to help you get familiarize with the parts offered. When you build a ship seriously for savekeeping build under Terran.