[Bug] Gundam Event – Unable to Purchase Final Pack (27/27 Locked at 26/27)

 APEX:   I exchanged the refreshed activity box in the activity store during the process of purchasing the Abian Energy Whip. However, the last box of the Abian Energy Whip could not be purchased. The activity store indicated that the purchase was completed, but I still didn't receive the Abian Energy Whip.