Hi all,
We are seeing exactly the same after an upgrade to 13.0.
We have 2 domains and using the domain drop-down method specified in CTX203873. Cookie based expression is being used for both auth and session policies, but that does not work anymore. The cookie based auth pol is completely ignored and all auth requests are being sent to the servers bound to the higher priority auth policy. To make things worse, in our environment we have identical user accounts (and passwords), so users can never auth to the second domain.
Anybody knows of any work around? We raised the issue with Citrix, more than 3 months ago, but they have not been able to help us yet.