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Fixed in Unity 2018.3



Found in

Issue ID




[MacOS] Exclusive Fullscreen mode launches into windowed mode when "Allow Fullscreen Switch" is unchecked.




Priority: 3Not yet prioritized for a release


Severity: 3Secondary functionality broken

In the Player Settings -> Resolution & Presentation, if user chooses to launch Player into Exclusive Fullscreen mode without checking option "Allow Fullscreen Switch", the Player launches into a window with title bar, but on top of all other windows, menu bar and dock. But it is in the same space where it is launched, instead of creating its own space.

1. Create or use an existing project on 2018.3.0a1
2. Go to Player Settings -> Resolution & Presentation.
Set "Fullscreen Mode" to "Exclusive Fullscreen"
Set "Allow Fullscreen Switch" to "Checked"
3. Build the Player and launch
4. Change "Allow Fullscreen Switch" to "Unchecked"
5. Build and launch the Player
6. Compare the difference.

Project download:

Reproduced with: 2018.2.0b11
Not reproducible: 2018.2.0b10

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