[PTR issues:] Unable to log in on Brill and Naralex

I upgraded my PTR clielt to 4.2 to find out that all the servers I copied any characters on (Brill and Naralex gives me a lua error
"interfaceGlueXMLCharacterSelect.lua: 539: Usage: GetSelectBackgroundModel(index"
and the message "Error retriving character list".
Im unable also to create new characters on those two realms.
I deleted the whole PTR folder and re downloaded it (twice, and I had the very same problem.
I tested it and I can normally create any character on any KR server. It looks to me like a problem serverside on my PTR account.

FAIL (the browser should render some flash content, not this).

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