Storage Migration - Error HRESULT E_FAIL has been returned from a call to a COM component.

I'm trying migrate my fileserver from 2008 R2 to newest build 2019. But during the Server Migration in Admin Center im getting the following error:

Fail: Error HRESULT E_FAIL has been returned from a call to a COM component.

From the Event log i can see the following: 

05-17-2021-09:14:26.948 [Erro] Error querying FileInformationClass.FileStorageInfo on source '***Servername****'. Error=-2147467259 [d:\os\src\base\dms\service\OperationManager\TestDevicePairTask.cs::TestQuerySourceFileStorageInfo::1066]

It's running Vmware - both servers have the same HDDs and CPU and RAM - and all windows updates have been installed, and both boxes rebooted.

No Windows firewall enabled, and living on same ESXi host.

I have tried googling and none of the results I found helped 😞

Validation results:

We can transfer data from the source computer at maximum speed. This might fail when required software updates are not installed on the source.
Fail: Error HRESULT E_FAIL has been returned from a call to a COM component.
The destination exists.
Pass
The destination server isn't the same server as the source.
Pass
The SMB connection works.
Pass
We can use the credential provided.
Pass
The credential has administrative privileges.
Pass
The destination proxy is registered.
Pass
Backup privileges can be enabled for these credentials.
Pass
The destination is unique.
Pass
The source and destination computers are supported for transfer.
Pass
The destination server has at least two CPU cores.
Pass
Volume C: - The source volume exists.
Pass
Volume C: - The destination volume exists.
Pass
Volume C: - The destination volume is unique.
Pass
Volume C: - The file systems are supported.
Pass
Volume C: - The file systems match.
Pass
Volume C: - There is enough free space on the destination volume.
Pass
Volume E: - The source volume exists.
Pass
Volume E: - The destination volume exists.
Pass
Volume E: - The destination volume is unique.
Pass
Volume E: - The file systems are supported.
Pass
Volume E: - The file systems match.
Pass
Volume E: - There is enough free space on the destination volume.
Pass
Volume F: - The source volume exists.
Pass
Volume F: - The destination volume exists.
Pass
Volume F: - The destination volume is unique.
Pass
Volume F: - The file systems are supported.
Pass
Volume F: - The file systems match.
Pass
Volume F: - There is enough free space on the destination volume.
Pass
Volume G: - The source volume exists.
Pass
Volume G: - The destination volume exists.
Pass
Volume G: - The destination volume is unique.
Pass
Volume G: - The file systems are supported.
Pass
Volume G: - The file systems match.
Pass
Volume G: - There is enough free space on the destination volume.
Pass