upgraded Player and Studio to 3.0, player fine, Studio I'm having access issues

hi, I upgraded this evening my SignagePlayer to 3.0 successfully and it's playing the content OK, but on the three different pcs in my office where I have the SignageStudio desktop installed I upgraded them all to 3.0, and now for all 3 of them when I log into to 3.0.1110 interface I immediately get this message "migration complete, please restart studio & login again"
and I close the studio restart it relogin again...and get the same message?! 
I'm stuck in a loop on all 3 pcs and can't successfully get logged into the 3.0 desktop interface on any of them. 
Please help!
as right now I can't edit our signage because of this.
Thanks
David

Try adding .30 to your login email and use he same password. Should work.

Thank you, that worked!
Is this login user name change permanent?

thanks,
david

yes it is.