When executing a Policy Xpress (PX) REST query in CA Identity Suite v15, the request fails with a 406 Not Acceptable error. This issue is a regression of a defect previously resolved in version 14.5.1 CHF2.
IGA V15 fixpack5
This issue is caused by a product defect identified in the v15 version.
A permanent fix is included in v15 Fix Pack 6, which is scheduled for release between late April and early May 2026. Once published, it will be available on the CA Identity Suite Release Notes page.