Systems ignore Windows 10 Feature updates policies and never upgrade

jalvarez77 thank you for reaching out! In terms of compliance, are you leveraging the new deadline policy within Intune? There are a variety of policies you can configure that will slow compliance, so it is important to ensure that you aren't setting any of those (check out Ignite talk on Intune policies here: https://techcommunity.microsoft.com/t5/video-hub/setting-up-windows-update-for-business-via-microsoft-intune/td-p/1681524). 

In terms of monitoring there is both Intune analytics as well as Update Compliance which you can utilize to determine why devices are not up to date. 

Devices should not be ignoring the configured policies. Please file a bug if that is the case. 

Please let me know if you have any further questions! 🙂