Waystone (map) 15 finished but not completed - BOSS dead but not died - BUG report 324,530,559

Just pointing out...

Waystone - SUMP, moster lvl 80.

After I killed boss (Ignagduk, the Bog Witch), I got a loot but seems like boss jumped over map edge with some funny sound...

Anyway, map is not completed, still says 1 monster remains, but there is no more living thing in this map.

Hope you solve this bug in the future.

See ya GGG! Keep up a good work!