What were you trying to do that didn't work?
    CAC card only works on GUI when GDM is restarted or it is inserted before boot.
Please provide the package NVR for which bug is seen:
    Red Hat Enterprise Linux 9.4
    pcsc-lite-1.9.4-1.el9.x86_64
    sssd-2.9.4-6.el9_4.x86_64
    gdm-40.1-23.el9.x86_64

How reproducible:
    Customer listing was filed for is able to consistently reproduce the behavior.

Steps to reproduce
    When inserted at startup, if the CAC is removed at any point, the subsequent insertion of the card is not recognized.
    When issue occurs when restarting GUI, user must login to root user to insert CAC then logout so that certificate is read on appropriate user login.     

Expected results
    Card works without needing to pre-insert card or restart GUI.
Actual result
    CAC card only works on GUI when GDM is restarted or it is inserted before boot.