Hi
Please check this documentation, step by step to make sure that all computers have "Inventory Agent" and "Application Metering" agent installed, Inventory is gathered from computers, Software product has enabled "Usage tracking" and correct .exe files, file(s) version is set there to meter usage.
https://techdocs.broadcom.com/us/en/symantec-security-software/endpoint-security-and-management/it-management-suite/ITMS/Related-Solutions/Inventory-Solution/Software-Usage-Tracking,-Application-Metering,-and-Application-Denial/software-usage-tracking-v74387156-d774e7536.html
Best regards,
IP.