'You have to specify an exact os version'

Dear people,

I’m trying to provision a VM (WIN10 Enterprise LTSB) to the Balena dashboard.
I installed the standalone Balena-CLI on the VM.
After specifying my hardware (I chose Intel NUC because of the VM usage) it started to download the DeviceOS image. This had success.
After that I received an error: ‘You have to specify an exact os version’.

Somebody knows a fix for this?