ARAM Prize Magnet Mission (Hextech Chest reward) progression bugged

As said in title, the Prize Magnet mission which requires 3 ARAM mission to be completed with a day is bugged. My mission progression has been stuck at 1/3 since yesterday. Even though I completed 4 mission within the last three hours. So no Hextech chest and key from this event. Only XP and BE. I have tried restarting the client and visiting the store page several times, that particular mission won't move. All it requires is that you complete 3 event mission in one day.... Edit: Problem solved. Wish I could change thread title.
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