Can't enter boss area in mapping node

in a t15 gothic city node and Asinia flies in ghost form to start spawn animation as a boss. I was standing at the entrance to the bigger area where she flew into regening before going all the way in. She spawned and now theres an invisible wall keeping me from going into the area where she is. There's no "arena wall" to click to enter. Ive tried leaving the area, logging out, restarting game, nothing works to make the wall passable. What triggered this is i saw her fly in as i was rushing around and then quickly backed up out of the boss area before the animation to her spawning ended so i wouldnt fight her yet.

I encountered this same issue. T13 Gothic City map. Stepped into the boss room for a moment, rolled out immediately to fight a wolf that chased me. When it was dead, Asinia had spawned and the room locked me out. No option to click the barrier to enter.

Same happened to me just now