Hello,
Regarding regular expression and resource matching you can check the following doc :
https://docops.ca.com/ca-single-sign-on/12-52-sp1/en/configuring/policy-server-configuration/rules-overview/resource-matching-and-regular-expressions#ResourceMatchingandRegularExpressions-RegularExpressionsforResourceMatching
I checked the release notes and not able to see any issue with regular expression.
> When you implemented your new login server, have you made any changes to your application protection server ?
> Can you please provide you environment details ?
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-- ENVIRONMENT:
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> What is the policy server version ? SP ? CR ?
> What is the OS ?
> What is your Policy Store vendor ?
> What is your User Directory vendor ?
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> What is the WebAgent version ? SP ? CR ?
> What is the WebServer version ?
> What is the OS of the WebServer ?
> Did you try to use the siteminder test tool (windows only) to check the validity of the policies and the result of an IsProtected call ?
> Without logs/traces of WA and PS is will be difficult to find the root cause.
Hope it helps,
Julien.