I have disabled personally owned devices for all users in Intune's default enrollment restriction policy.
Now I would like to re-enable it for a subset of users. To achieve this, I have created a custom enrollment restriction policy with personally owned set to "Allow" for iOS/iPadOS devices. I created a security group and assigned this to the "Included groups" section. Obviously, I also added my test user account to that group as well.
Looking to the troubleshooting section in the Endpoint Manager web console, the custom enrollment restriction policy is active for that user. However, I can only use device enrollment with that user, it is not possible to use user enrollment only (error message "Platform not allowed for personal"). It will work however if I re-enable personally owned devices for the default restriction policy. Even though that policy is not active for that user because the custom policy has higher priority, the default policy is still applied here. Strangely enough the debug console does not show any OS information. Doesn't matter it seems because like I said, it does work as expected when the default enrollment restriction policy allows "personally owned" for everyone.

This really looks like a bug to me.
Anyone has a solution for this or knows how to file a bug report to MSFT to ensure this will be fixed soon?