Here is the current issue identified after the maintenance was completed on Dec. 19, at 1:20 AM PST (Dec. 19, 9:20 AM UTC).

Please read below for details.

* Known Issues

1. The list of rewards in the Extract Star Shards feature is incorrectly displaying the actual rewards for some accounts.

- We are currently investigating this error and working on a solution as quickly as possible. 
If you are experiencing this issue, please refrain from using this feature until we fix it.

We apologize for the inconvenience caused by this issue and will do our best to provide a better gameplay experience.

Thank you.