Four abyss nodes spawned simultaneously while a Legion encounter was active

bug report ref #: 1,374,073,449

in Cursed Crypt map

Activated Legion encounter

was activating part of the encounter

four abyss nodes? activated simultaneously


damage sources: pcoc of bouncing, herald of agony, plague bearer
Profane Bloom, Asenath's Gentle Touch

maybe a weird race condition from one of the above?