Trying to generate the 'User Activity' report from DevTest Portal and the report section shows no data.
DevTest Portal-->Reporting-->Administration-->User Activity
Release : 10.7.2 or newer
Fontconfig not installed on Linux server and caused the issue.
Per System Requirements, DevTest requires Fontconfig to be installed on Amazon Linux 2022. Run the below command to install Fontconfig:
sudo yum install fontconfig *dejavu*
After installing Fontconfig and restarting Registry and Portal issue should be resolved.
But if you still see issues, you will have to reboot the Linux Server.
Look for the below in registry.log.