Uninstall not allowed This app cannot be deleted because it is required by 'organisation'

Hello,

We are using Mosyle here at a school for our supervised and managed iPads. I am the admin.

I have an issue with about half of the apps (VPP licensed apps)

When I try to remove apps on both supersived iPads and Managed iPads, I get the following error:

Uninstall not allowed This app cannot be deleted because it is required by 'organisation'

The apps can be removed, there is no restriction preventing this.

There is no 'required' option in Mosyle as far as I can see.

Not happening to all apps, so that is why it is so hard to blame any setting in the MDM.

I have Googled this, there doesn't seem to be much discussion about it.