I was just at Lullaby Island, trying to obtain my second “Voice of the Forest” for the “It’s Okay Miss Fairy” quest. Once inside the cave, the co-op event started and I played Song of Resonance twice. The event was completed before I finished playing the song for the third time. I didn’t have any of the three contributor trophies light up yellow for me, and once the event was over, instead of getting the chest, I got a message saying “You cannot claim this reward because you cannot receive rewards or you need to contribute more.”
Is this a bug? I was in the event from the very start to the end, contributing as fast as I could with the other players. I don’t understand how I didn’t get the quest reward.