We have deleted Usage_metering Probe version 9.29 then deleted the probe directory from the server, then deployed the Usage_metering Probe version 9.29 to the same server.
We can run report against the current month but not the previous 3 months.
Release : 20.3
Component : UIM - USAGE_METERING/BILLING
Usage_metering probe maintains the Monitoring data in DB and the Location of this DB in probe directory.
Since the probe directory has been deleted, the DB file is also deleted so it is not possible to generate the previous month's report as all previous months readings are lost.