FYI - the Server Setting for Data Retention only applies to resource utilization data.
It is data related to license metrics other than PVU and RVU MAPC. If you specify retention period for resource utilization data, data that is older is removed from the IBM BigFix Inventory database.
I’ll also point out that PVU Subcapacity reports are historical in nature, and will contain data about software that was previously installed in your environment. If the software was uninstalled before the period covered by the report, it will not be included. If the software was uninstalled after the start of the reporting period, it will be included.
You can see the uninstalled software in the Software Classification report by including the column Present in your view, and removing the filter on Present which excludes uninstalled software. When the software is no longer discovered, the value of Present changes to No.
Does the uninstalled software show up as Present=No, with a Discovery End date before today?