I clearly remember checking in on the mentioned event yesterday but when i tried to check in today i noticed that it wasn't checked in yesterday...

I also found out that another player has the same problem. The both of us use Facebook account (which is my other account) on that event.

As for this account which is an oasis account has no problem checking in.

So i think there might be a problem with it... would be frustrating if i miss out of the rewards...

I wish you guys can investigate on the problem thank you.