A patch has been released to resolve this issue. I have not been able to confirm this myself so if you were having an issue and its fixed please comment below so i can remove this solution.
Not an actual solution just a heads up. I experienced a bug causing my game to crash on the final mission. If you encounter this i recommend sending your companions to the ship and going on alone. It made it possible for me to complete the quest.
Online searches suggest it may be a specific companion that causes the crashes so some of you may not experience this at all. I did not test which companions, if any, were ok or not.