New User - Account not found on launch *fix*

New user. I had an issue, spent hours looking through videos and forums.

Once the multi screen layout shows up from Lavish, and the screens are waiting for you to put in your password....
I tried going via client, removing wtf to desktop etc etc

my fix:

Manually retype your Email Address.
Complete "i'm not a bot"
use authy code (if you have one)

So for some reason it just wasn't registering my email addy on all the acc's and I just had retype it.
you'll notice the font that gets auto typed in is different to the wow used font for some reason, maybe that causes an unrecognised text issue.
(I actually remember this being an issue years ago with the basic launcher)

Hope that works for you