QTBUG-61536 issue has been closed but I am still observing memory leak when loading 2 qml files one by one with in timer (1 sec) using QQmlComponent 

"QQmlComponent newComponent(engine,QUrl(m_urlPath)); //newComponent->loadUrl(QUrl(m_urlPath)); return newComponent.create();"

I have tried on QT 5.5.1 , 5.9.0, 5.10.0 versions on Windows & QNX. 

both the QML files have only one rectangle :

Rectangle { color: "green" border.color: "#00221e1e" width: 800 height: 800}, 

Also, I am releasing the memory using below functions:

collectGarbage();

releaseResources();

trimComponentCache();

clearComponentCache();

Kindly let me know if more details are required.