The earliest recollection of this bug is traced back to PAN-OS 10.2.0 - March 11, 2025.
The SCP Server Profile configuration ( Devices Server Profiles SCP are not automatically deleted after downgrade from PAN-OS 10.2.0 to PAN-OS 10.1 or earlier release.
For more information:
https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-0-known-and-addressed-issues/pan-os-10-2-0-known-issues
https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-1-known-and-addressed-issues/pan-os-10-2-1-known-issues
https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-2-known-and-addressed-issues/pan-os-10-2-2-known-issues