Warpten/TrinityCore — comment on commit ddbff451e6b8005c83879ba875128ab4eb7b9dbb
File: src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_halion.cpp line 419
By Warpten:

I start to believe that Twilight Halion is spawned in the meantime as Halion, cux this could cause some bugs.