We have confirmed an issue with the Steam version Mobius Final Fantasy which was released on Feb. 5, 2017 10:00 p.m. (PST) where users are being connected to the Korean server.
The above phenomenon has been addressed on Feb. 6, 2017 10:00 a.m. (PST) and can now be played with your correct region.
With this fix, you will no longer be able to play with the Korean version save data.
We apologize for the inconvenience this has caused.
Furthermore, any Magicites purchased from the Korean server shop will not reflect in the English server.
Please contact Steam if a refund is required.