This is [Hero Cantare] CM Liddie!
On the previous issue where the new Pair Hero [King Dark & Kallavan] Hero Event's Awakening Passive Step 2 and 3 mission reward could be claimed by just learning the Step 1, the issues was fixed by real-time resource patch at 01:25 July 26th PDT.
During today's scheduled server maintenance time, for the players who have claimed the Awakening Passive Step 2 and 3 mission rewards previously, the rewards (200 [S] Memory Stone and 100 [SS] Memory Stone) will be reverted and after that it can be reclaimed in the Hero Event Mission tab.
Please be noted that if during the reversion progress the players' reverted items (200 [S] Memory Stone and 100 [SS] Memory Stone) are not enough, the amount will become minus. (although it will only be displayed as 0)
And when the player obtains the same item again, it will be added to the minus number until it reaches zero number.
We are sorry for your inconvenience and thank you for your understanding.
Hero Cantare Team