anyone know what kind of edition is ServerStandardACor ???

I have 5 Dell Poweredge R640 and R730. I used the same Windows 2016 Standard image to install the 5 servers.

When I use the command DISM /Online /get-currentEdition:

4 servers result: 

Deployment Image Servicing and Management tool
Version: 10.0.17134.1

Image Version: 10.0.17134.1304

Current edition is:

Current Edition : ServerStandardCor

The operation completed successfully.

Only one of them shows:

Deployment Image Servicing and Management tool
Version: 10.0.17134.1

Image Version: 10.0.17134.1304

Current edition is:

Current Edition : ServerStandardACor

The operation completed successfully.

the 5 servers are registered with a Volume MAK channel

and when I try to update that server to DataCenterCore:

Command: dism /online /GET-TARGETEDITIONS

Deployment Image Servicing and Management tool
Version: 10.0.17134.1

Image Version: 10.0.17134.1304

Editions that can be upgraded to:

Target Edition : ServerDatacenterACor

The operation completed successfully.