I'm updated to the 2.0.11 version, and have started a NG+. However, upon reaching the DLC I found myself locked out of Beryllus' affinity completely. I gained affinity from the meeting encounter despite his gauge showing as locked, but since then it hasn't gone up or unlocked no matter what I do (I've done everything else I can at this point, including Dunkan and Vrok's heart endings)