Gray tag on mobs / bosses

[vanqoriumsito2]

So today we have been experiencing an issue where even in party or raids, we see mobs target in gray color, even before someone hits it.

This is specially a problema during Faerlina's 25 man encounter, considering that Priests cant perform Mind Control on them, and making impossible to chill Faerlina's enrage.

Is this happening to everyone?

[76234876]

Yes, and not just on Frostmourne.