I've been meaning to make a post about this for a little while, but after completing all of Orthanc t2c recently, my group and I have noticed some new bugs that only appeared after being released on Anor. Fire and Frost now has a bug, where if you reduce a Giants rage(killing opposite element grim under a Giant) and then kill it, it causes the Giant's body to not despawn properly. For as long as the Giant's dead body sits there, the same Giant will not clap(the ability that spawns grims), completely stopping a challenge group's attempts until it decides to despawn. I've never ran into this problem in the last 3-4 years ive been doing Orthanc off and on, and my group has had very limited success in trying things to speed up the despawn process. The other bug is in Shadow t2c. Every time a defiler finishes an induction, there is a small chance that the challenge randomly fails. The wall of light still closes properly, but every time this has happened to us, it is nowhere even close to consuming the throne. Obviously, neither of these bugs are game breaking, but they are still very annoying to encounter.
Even with these two new bugs, I would like to thank you for (seemingly) listening to my last forum post regarding the balancing of Orthanc. It's absolutely amazing. The mobs morale forces you to encounter the actual mechanics of the fights, regardless of how high your group's dps is, and the amount of damage they put out forces you to always be on your toes. It's the perfect median between prenerf and postnerf Ost Dunhoth. The most fun I've had in Orthanc in a while.