I have ran into a game-breaking bug, which has barred me from completing Encore: Overture and Encore: Concerto on expert difficulty. In the final boss fight against Stasimon, Choral Mind, and after completing the first portion of the health bar, I find that the mote that's supposed to spawn on the shield around the Choral Mind refuses to spawn. I've been playing the mission solo, and have ran into this bug every single time, without failure, whenever I reach the second portion of the health bar. I'm not sure what I can do at this point, and there hasn't been any fix released yet either. I would hate to miss all the catalysts for Choir of Voices, so will the other versions of the missions being playable before the season ends, or is there going to be an alternative way of getting the catalysts at a later date?