I have completed the new set of quests with Cyella after finishing the 5.4 main story beforehand. I discovered in the initial quest with Unukalhai that he speaks with Urianger. However, if one does the main story first, they will notice that Urianger has left to go to Garlemald with Thancred. If that's the case, how is Urianger able to help Unukalhai when he is with Thancred?