Trial IDP-SIG license still shows 'needed' after installation.

IDP-SIG feature shows that one license is needed even after installing the license.

If the validity periods of the license is correct and it hasn't expired check if IDP is running using the following commands:

show security flow sessions idp <-- Check for flow sessions using IDP

show security idp status <--- Check for traffic being processed by IDP

IDP license being installed or not could also be determined by our ability to install the IDP DB:

Run "request security idp security-package install" to attempt to install the IDP DB, if the IDP license is invalid the following error message wil be seen: error: Security Package installation disabled temporarily due to invalid license.

If all the above commands indicate IDP is running then most likely this is a cosmetic issue seen on the "show system license" output.