Blizzard has been hotfixing a few bugs or situations in some boss encounters. If your guild was alienated by these, you won’t have to wait for a patch. It is now fixed internally.

Daelo: “We just implemented a hotfix for all realms that makes Archimonde’s doomfires no longer be able to move right through him after they spawn. Their movement should now be much more consistent with the previous patch’s behavior, and melee should have a bit easier time dodging the doomfires as a result of the change. There have been other reports of odd behavior in the encounter since the 2.4.2 patch, but this is the only problem we’ve been able to verify locally. We’ll continue to monitor reports of unusual behavior in this encounter, and investigate further as needed.

We also hotfixed a bug in the Eredar Twins encounter that prevent a Hunter’s Feign Death ability from working if Lady Sacrolash was alive.

We’ve changed the Negative Energy spells cast by M’uru and Entropius to no longer cause spell interruption on the target. This should ease the frustration of the encounter for those casting classes who can not obtain 100% resistance to spell interruption through talents and effects such as Concentration Aura.

This change is live immediately on the US realms, and realms in other regions will receive this change with the deployment of the 2.4.2 patch.”