When an ICA session is launched, session recording agent doesn't start to record the session activities. In the Windows Application event, session recording agent event 3014 is logged with error message "The Session Recording feature requires a Platinum license to function. Session Recording will be disabled".
The on-prem CVAD environment is using Citrix Universal Advanced Plus license, which doesn't support Session Recording feature.
In the on-prem CVAD environment, please upgrade the existing "Advanced Plus" license to "Premium" license to enable the session recording feature.
Or, stay with the existing "Advanced Plus" license and migrate the on-prem CVAD environment to Citrix DaaS.
Note: Session Recording currently supports Citrix DaaS Advanced, Advanced Plus, Premium, and Premium Plus editions.
The article describes a session recording failure caused by unsupported license type.
https://docs.citrix.com/en-us/session-recording/current-release/system-requirements.html#session-recording-agent