Mirage/boxes BUG

In Haunted Mansion, running strongboxes.2 bugs occured in the same map:
1) Astral chains, are nowhere to be found, as a result Ridan is missing too
2) One strongbox also bugged like some monster is still alive, i am looking around the mirage for more than 20 minutes. I cant find neither any monster (although it says 40 monsters remaining) or the astral chains.

you need the /bug # for reports like this

odds are Ridan and the missing monsters are in the boss room... and if its inaccessible the /bug # will let GGG regenerate that instance to see what was wrong.