There seems to be a problem when it comes to forms and z-order.
In my app I display a dialog box where user can enter some information. It stays on top of things as it's supposed to do until made to go away, see image 1.
If the user clicks an icon to display a form with the details for an order item, the fields in the form shines through and are not covered by the message box as they are supposed to, see image 2. The form is lower in the list, so the z-order should be lower and the contents of the form ought to be obscured by the dialog. This is highly annoying, and plain wrong!
It behaves the same way when running in the web tool, run directly in the browser, on an iPad or Android phone.
The message box displays over the galleries as it's supposed to do. It's in the group marked on the left side.
When displaying the details form, the fields of the form are visible in the dialog box, even if the form is lower in the list on the left