- 
    
Bug
 - 
    Resolution: Done
 - 
    
P2: Important
 - 
    5.3.1
 - 
    Windows 7 (64 bit)
 
- 
        4ca7b23dc007afd58928dc6949cb797903f10951
 
1. Run the demo attached to QTBUG-40743 in debug mode
(qmake.exe qnswindow.pro -r -spec win32-msvc2010 "CONFIG+=declarative_debug" "CONFIG+=qml_debug")
2. Click "File->Create quick view". Notice that the window that pops up is displayed correctly
3. Run the demo in release mode
(qmake.exe qnswindow.pro -r -spec win32-msvc2010 "CONFIG+=release")
4. Click "File->Create quick view". Notice that a black window pops up
This issue happens on 5.3.1 (ANGLE), after applying QQuickWidget patches up until https://codereview.qt-project.org/#/c/92764/