Notifications are no longer displayed on top of other apps if the editor is not focused.
Also, on Mac minimizing the editor window is not the same as hiding the app, so if you minimize a window, only this window gets minimized, all other windows are left intact. To make all editor windows go away, you have to use Hide option from the app menu (Cmd+H).
There are some dialog windows that will render on top of other external applications when the editor is minimized and does not have focus.....i.e. 'Building Lighting' and 'Auto-Save' dialog windows.
Another user experiencing issue:
1. Open the Blueprint Office project on a Mac.
2. Press the 'Build All' button.
3. Minimize the project.
Outcome: Observe how the light building dialog window is still apparent on the desktop.
Expected: The dialog windows are minimized with the Editor.
Head over to the existing Questions & Answers thread and let us know what's up.