Engineering has determined that
ePO Support Center Extension Update 3 (version 5.10.0.434) causes the issue.
You observe the following when the ePO 5.10 Update 7 or 8 is checked in:
- The ePO Support Center Extension is installed.
- ePO 5.9 is incorrectly listed in the Software Catalog, although the option Hide older versions if not installed is selected.
- But, after removing the Support Center Extension, the ePO 5.9 doesn't show in the Software Catalog.
With ePO 5.10 Update 9 installed, ePO 5.9 remains listed in the Software Catalog, with or without the Support Center Extension checked in.