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Bug
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    Resolution: Done
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P2: Important
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    5.12.2, 5.12
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    macOS 10.13 and 10.12
 
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        f344b6357e751f54bcb003bc88c7fe15d616be7c (qt/qtbase/5.12)
 
Rendering incorrectly (rendering line or shadow on transparent area) when resizing from big to smaller quickly by grabbing semi-transparent gray area in bottom right in sample code on macOS 10.13 and 10.12. It works normally on macOS 10.14 or using Qt 5.9.
- relates to
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QTBUG-74458 [macOS] Can't grab transparent widget on macOS 10.13 and 10.12
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 - Closed
 
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