This article will help users to unblock this issue with the help of GSS.
SDDC-Manager restore operation fails at sub-task ExtractSDDCManagerBackup with error "Extracting SDDC Manager backup file operation failed, SDDC Manager lcm version verification failed".
VMware Cloud Foundation 4.x
VMware Cloud Foundation 5.x
When SDDC-Manager is upgraded using the Async Patch tool, the new SDDC-Manager version is not updated in the inventory. So, the SDDC-Manager ova location that we provide in the metadata.json file still points to the previous SDDC-Manager version. Because of this, the restore failed at the SDDC-Manager services version check as the SDDC-Manager services versions are not matched.
Workaround:
1. Determine the correct SDDC Manager OVA to use by referencing KB, How to determine SDDC-Manager-Appliance ova to Restore from Backup
2. Follow the steps in the VMware Docs to restore the SDDC manager. Prepare for Restoring SDDC Manager