Hello,
During Thaddeus we ran into an issue where if one monstrosity died at the time of combat completely resetting, the monstrosity would not be resurrected, not targetable, and thus the fight is not able to continue. We attempted killing only Stalagg to see if it would resurrect Feugen and make them targetable, but the only remedy is to completely exit the instance for 15 minutes and soft reset it.
Thank you.