Started NG+, can't find Black Witch in the Nexus and can't get to the Monumental I am back in the Nexus for NG+ after completing the game first time round, I have explored all of the Nexus and I just can't find the Black Witch to level up and the door up to the Monumental is block off, I have heard I need to complete 1-1 to unlock the Monumental but that doesn't explain the Black Witch hiding from me. Do I have to do something to unlock her again? 
I have explored as much of the Nexus as I can should she be here and I am not looking hard enough?