Can't change account on Log in screen

[Mystic Lightweaver]

I haven't played for about a month. (Before EJ)
My log in screen is showing the last Log In is on my Partners account name.

I want to change to my account & when I click in the account name window, the whole game freezes & I have to Ctl-Alt-Del to shut down the log in window.

I have downloaded the patch Plus done a Full File check.

Has EJ broken the game?
Or is there something I am overlooking?

 

[Treasure Hunter]

What happens if you try to type in a password instead of account name, same thing?
What client?