When restoring your NSX Manager backups to a lab or alternately configured infrastructure, you receive popups during the backup process
- Compute manager
- Transport Nodes
This is expected behavior.
The popups you received are due to the fact that NSX is trying to reconcile the NSX config from the backup file with the lab environment.
It will not find the same components, therefore it will show the warnings and recommendations. This is expected in a lab environment. If this were production, it would be able to reconcile the components.
The best way to test the restore behavior to see a smoother run is to backup the lab manager and then restore it to the lab. That way, it will see the same components in the backup config and in the lab environment.