So I've been playing through with a friend and after reloading a save, Wolgraff bugged out, replayed his dialogue for first getting his voice back as well as giving me the option to ask him to join the party despite him already being a following companion. He worked fine for the rest of the session up until I told him to leave (had to ask him to join again first) and tried to get Bairdotr to follow but she told me that my party was full even though we only had Madora following. So, long story short, I can now only have one companion even though neither myself nor my friend have chosen the lone wolf perk.
Anyone else had a bug of this magnitude? We're 54 hours in so it would suck to have to abandon the save