Howdy!! As per title said, happen in p4 sith raid. When deathmark stick to sion, i can't select nihilus and see what's goin' on (the cooldown stuff). It make hard to strategize.
Ps: I'm on phone, kinda hard for me to file bug report from phone, i've failed many times from phone before. Also imo i don't think this is a bug, just something need to overlook.
Also as quote from Commander Geordi La Forge: "Can't see ---- Captain!!"