Visas, Handmaiden and the other party members that can be made into jedi don't create their own sabers. You equip them with sabers you come across ingame. As for the "So very very broken" bit, this is the game telling you some major error has happened. I don't know if anything can be done to fix it; hopefully someone with more (or at least more than my zero) computer knowledge can help.
Be considerate to others or I will bite your torso and give you a disease!