Delirium Grand Mirrors ETC

I have a problem

I did like 50 or more maps after the delirum questline. I have all delirium points and after questline not even ONE mirror spawned. Well i did but when i was doing Divine Arbiter questline and 2 of them spawned on that area but when i killed arbiter all maps change to done ones and i got points from it buuut i didnt run mirrors soo they still there. Is there any way that this spawned mirrors blocking other mirror spawn ? If yes how can i reset thoes maps to delate mirrors on them ?