After upgrading my vCenter Server to the latest vSphere 7.0 Update 1, I was unable to see ESXi 7.0 Update 1 Image. When I attempted to sync the updates I got the error “Download patch definitions task failed while syncing depots. Error: ‘integrity.fault.HostPatchInvalidVendorCode’.”
Seeing as the error mentioned the depots, navigate to Menu->Lifecycle Manager and then select the Settings tab and then Patch Setup.
Select the radio button for Partner provided Addons for ESXi and click Disable. Proceed to click on Action and then Sync Updates. The sync should now complete successfully.