I too had a problem with the master account after the install.
I was unable to log on, so i did a password request.
I'm told my password was: б█б╚б│б╟ц╛б╣Б─
I used that to log in and it worked. I then went to change the password to something in english instead of russian
. After hitting the save button, it booted me out. I then attempted to log in again with both the old password and the new one and neither one would work. I was just told that I was locked out and to contact the administrator. I then tried another password request and was then told that i didnt exist. I went into the database to see if i was really there or not, and i was!
Hmmmm....