Sorry to hear that.
I had the same two bugs two or three weeks ago, and here I am, waiting for the patch. Many of the people who reported the 'can't travel/crash to main menu' bug have said that they still had the 'Redemption' quest incompleted on their quest list. Do you have it?
I managed to skip the problem editing the location on my save game, so I could go back to Onderon. And once I had edited it I could travel normally to any planet I wanted to. BUT the problem appeared back just a bit later into the game, at a point where editing won't work, so I got stuck again. So I recommend you to don't go editing, because it will just make your frustation greater.
I have accepted the fact that I'll have to wait for the patch, then begin with a new character.