Had it happen a few times with both opponents conceding mid-cast and the “Your opponent left!” popup triggering in the middle of me casting Climactic Necrotic Explosion where the client finally passes the point of “are they coming back or was this a long-term disconnect/intentionally quitting?” when my turn comes around and I go to aim CNE at face for lethal, the ominous howling wind sound effect continues to play until client restart on PC. Persists through as many matches/time spent until the client is restarted. Not the biggest issue, but still figured I would submit a report/topic regardless!