completed quest wont clear

so trying to get RoV missions going, but have so many old ones open I am being forced to
jump back and forth from quest lines to complete. I am trying to Clear a mission in WOTG,
Fate in Haze, said I must compete one of two mission in San'D says I need to complete
Songbirds in a snowstorm. so I traveled to zone got all the key items, spawned the mob, killed it, got Cut scene, got reward, so in my mind I completed quest, verified I got quest reward and quest will not clear my log,
NPC will not move past same statement and I tried just to see, to move on to next quest
just to see if would move to next mission, no such luck. cant move forward...