Last night during Elegon HC my Doomguard seemed bugged.
I tried to summon with different timing, at beginning or at the end (during execute) but the result was the same: MY DOOMGUARD was just standing and moaning around looking for someting to do. I checked Skada and it did 0 damage.
I guess is a specific encounter bug, others had the same problem?
... i hate when my 10 min button doesn't work....