We are currently investigating the issue and working to address it.
■If the side story quest "Smiles Cross the Sky" has been accepted or completed, the NPC Mariorie will not appear at the Firmament and the commemorative concert cannot be performed.
We apologise for any inconvenience this may be causing and thank you for your understanding.
[Updated Feb. 16, 2021 at 19:55 (GMT)] This issue was addressed during the maintenance that took place from Feb. 16, 2021 06:00 to Feb. 16, 2021 10:00 (GMT).
We apologise for the inconvenience.