WAC SMS - Cutover Validation issues “Cannot connect to source computer using local user”

I’m using Windows Admin Center for storage migration and cutover.
WindowsServer2012——>WindowsServer2019

Inventory went good.
Transfer data went good.
But I’m getting stuck at validation.
I’m getting a pass for everything but the first option.

Option: “We can connect to the source computer using a local user account.”
Result: “Fail: Access is denied”

I’ve tried everything I know at this point and am wondering if anyone else has encountered this issue or has any insight. Thanks in advance!