Who is this bloke wandering around on the training station?
He just walks in a tight spot back and forth and can't be interacted with at all.

he is not supposed to be there, probably fell out of his usual place because of some bad physics collision. either ignore him or restart the game.

if you have a save, I can have a look.

I'm sorry, I have no existing save because I reinstalled the game. He's gone now however.