That's too bad you weren't able to get it working. It's so convenient to see who's calling when their picture is on the screen or on an email/message.
Did you try logging into another user account, Set up users, guests, and groups on Mac, and see if the problem persists there. (This tells us if the problem is limited to your user account or is system wide).
If it works in the other account, go back to your account and download and run Etrecheck. Etrecheck is a diagnostic tool that was developed by one of the most respected users here in the ASC and recommended by Apple Support to provide a snapshot of the system and help identify the more obvious culprits that can adversely affect a Mac's performance.
Copy the report
and use the Add Text button to include the report in your reply. How to use the Add Text Feature When Posting Large Amounts of Text, i.e. an Etrecheck Report
IMPORTANT:
Before running Etrecheck assign Full Disk Access to Etrecheck in the app's Privacy preference pane so that it can get additional information from the Console and log files for the report:
ALSO IMPORTANT:
Then we can examine the report and see if we can determine the root of the problem.
