Harden your Docker hosts

Hello,
I'm currently investigation the security solution 'Harden your Docker hosts' that comes with defender for servers plan 2. I have created two Linux virtual machines and installed docker on it. The docker is currently running a container:
The Microsoft docs (https://learn.microsoft.com/en-us/azure/defender-for-cloud/harden-docker-hosts) suggest that a recommendation will come available "Vulnerabilities in container security configurations should be remediated" in defender for cloud. I currently don't see that recommendation.
What i do see is the following recommendation: Container hosts should be configured securely , which is related to the policy "Vulnerabilities in container security configurations should be remediated". When i deploy the policy i receive the following compliant state: "This recommendation is not relevant for resources that are not Docker containers." .
I'm pretty sure docker containers are running on my virtual machine, see screenshot.
I'm wondering what is wrong with the setup? Did i misconfigure something?