Hello.

We have noticed this issue right after we finished the maintenance. We took servers down again for emergency maintenance and fixed this issue. This situation is different from the one with Sakura/Sasuke pack because we were able to take actions right away (as you've mentioned, it was early morning for these servers/players) and not that many players (if any) were able to abuse this issue.

With that being said, at the moment we do not plan to send any compensation, nor return the packs back to the redeemable shop. While I do not know the exact number of players atm, we will check it. We apologize for this situation.