Secure Score recommended us to enable the following policy within Intune:
Mark devices with no Microsoft Intune Compliance Policy as Not Compliant
However, that policy is set as suggested within Secure Score in Intune. Does anyone know why this setting isn't scored? And does anyone know on which portal I can create a ticket for this? The Intune team didn't know exactly to which team the ticket should be transferred.
In the meantime, this issue resolved itsself. One thing to keep in mind though:
The score is calculated once per day (around 1:00 AM PST). If you make a change to a measured action, the score will automatically update the next day. It takes up to 48 hours for a change to be reflected in your score.
In our case it took much more then 48 hours, but keep this in mind if you configure Secure Score.