When starting "Upgrade Planner" in Lifecycle Manager, the error appears:
"Failed to fetch product versions"
VMware Aria Suite Lifecycle 8.18.x
"Upgrade Planner" feature in VMware Aria Suite Lifecycle is deprecated.
To plan your upgrade, refer to the Product Interoperability Matrix
For more information about this, see the VMware Aria Suite Lifecycle 8.18 Patch 5 Release Notes.