Storage Migration Service failing Validation during cutover

[jeffp1221]

I'm trying to run Storage Migration Service to migrate our Server 2012 (Source) to Server 2019 (Destination). We are using another instance of Server 2019 as an orchestrator. It gave the following warning during transfer validation but it made it through the transfer with no issues: 

The credential has administrative privileges.

Warning: Action isn't available remotely.

The destination proxy is registered.

Warning: The destination proxy wasn't found.

The issue that I'm having is the validation during cutover is failing with the following error:

We can connect to the source computer using a local user account.

Fail: Access is denied

All other validation tasks passed. I checked to confirm that the credentials that I am using are in the local admin group and they are. Any help would be appreciated.

[#2]

@jeffp1221 Hi. From the orchestrator computer, can you logon as the account you are using for source migration, run COMPMGMT.MSC, connect to the source computer with it, and try to create a test local user and add to the local administrators group?