You are right, I do have his underwear lol,
I had meant his sniffets (oops)...
Vrok and Dunkan appear in my sniffets menu, but above them is a profile with a "?" which I think is definitely meant to be Beryllus... I think the game isn't letting me find his sniffets in the world because it considers him unlocked?
Regardless, I am looking forward to the fix for this :) Thanks for your reply, keep up the great work :D