I’m using multi-threaded opengl in my qml so qquickwidget is not an option, when I use qwidget::createwindowcontainer to manage qquickview and embed it into qlayout it works fine .
but if I take it out of qlayout , when put back into qlayout, the qml does not display anything. I tried setting qapplication::AA_ShareOpenGLContexts flag and setting qquickview