Please use this thread for feedback and bug reports regarding this encounter, or related issues. Noting the nature of your group (Mythic guild premade, PUG, etc.) is helpful, as are any logs. Thank you to everyone who has come out to help test!
A hotfix was applied to fix an issue preventing progress to the Remnant of Ner’zhul after defeating Soulrender Dormazain.
As of Saturday 4:30 PM EST, this bug is still happening. Killed Dormazain and was unable to get to the next bosses.