UsedLicenses in UserLicense Object is zero in SOQL query result

I would like to query the number of used Customer Community License in my org using the following query:

SELECT id,MasterLabel,Name,Status,TotalLicenses,UsedLicenses,UsedLicensesLastUpdated FROM UserLicense

However for some reason the result from DevConsole returns 0 (see attached userLicense-query-result.PNG) while it is shown clearly as a non-zero number in Company information (see attached company-info.PNG)

Does anyone know what might be the issue? This is also an issue when querying on workbench and other tools like Salesforce Inspector.

Besides, it doesn't look like a problem with other licenses.

#Salesforce #Sales Cloud #User Licenses #Community Cloud