Twice now I have the void cannon bug out and be unable to pick it up causing us to be soft locked during the Piker smuggle missions. When the shields go up to prevent you from depositing the engrams, you are supposed to kill a servitor that drops a void cannon used to destroy the shield generators. Twice now I have killed the servitor and the gun drops but nobody is able to pick it up. The prompt to pick up the cannon just doesn't appear. I have sat and waited for a while to see if the cannon will despawn or a new servitor will spawn. It appears the servitor won't respawn until the current cannon is depleted. It's quite frustrating to have to abandon a mission halfway through because of this.