Thanks for all that extra info MEF, I’ve created a report for this for the team and will add this extra info to it.
I double checked with the team and unfortunately there is no way to swap characters. I don’t recall hearing of this happening before, and it may be difficult to replicate on the teams end but, I think it might be benifical for them to have a look at your save on their systems to see if anything shows up indicating what could have caused this to happen.
I have instructions for sending saves here if you need them: [Save File Request]