Yes, this issue is related to the registered community edition, not the enterprise license.
I have just requested the activation key and used it on this instance, which is hosted on a private Ubuntu server with Docker. I haven’t used it anywhere else, but after activation, the premium features still remain unavailable in Usage and Plan.
The logs show that the license activation was successful, but there are errors related to renewal and entitlement:
license activation failed: consumer already has a valid entitlement for this reservation
Failed to renew license: renewal failed because current cert is not initialized
Have you used the license on this server before? And then was removed for some reason?
Might need a license clear if that is the case more can be found here.