Details
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Bug
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Resolution: Duplicate
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P3: Somewhat important
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None
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5.12.2
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None
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MacOS 10.14.4
Description
When you use QSG_RENDER_LOOP = basic (by default), and when you create a new parent window using QML, all windows redraws.
I attached QML code and video to reproduce.
This does not happen if you use threaded rendering, but Qt 5.12 with MacOS 10.14 not work with threaded rendering (https://bugreports.qt.io/browse/QTBUG-75037)
Edit:
If use MacOS SDK 10.13, all works fine.