Platform (Browser -Chrome, Firefox etc / Mini client) : Mini Client
Server number : S 788
Character name : Jello J
UID (Facebook account - you can find your UID on the bottom of the Facebook page, Oasis account - go to your profile page and click on your avatar) :300028142354684

Description of the problem you are experiencing : I finally fragged together a secret scroll plate and when i opened the system to select which plate i wanted open, i clicked the down arrow to see the next page and then the game immediately unlocked the Arcane Mastery, I didnt even click it open or anything.
Screenshot of the error page :

Your computer time zone and your country : NY
Are you using VPN ? : No