Any fix yet? Also just bought the game, feel like I can't really progress without being able to complete the second ship building tutorial lol, kinda major oversight no? Suggested fix from earlier in this thread didn't work for me - the needed parts are not showing up in the advanced editor.
EDIT: for anyone still running into the issue, what worked for me was loading a different ship with the RT-5 Engine (Jumping Flea) and then taking off parts until the tutorial was happy.