Windows 7/OpenGL: Window content is cut off in all QtQuick apps

When I run a Qt5 app that shows a window made with QtQuick, the content of the window gets cut off, starting at (0,0) and up to some X and Y. I'm having this issue with Nextcloud ( the tray window) and Genymotion (login window).

I'm not a pro at Qt but I did some debugging with Nextcloud and so far I think it has something to do with the window position. The more the window is positioned away from the top-left corner, the more content gets truncated, i.e. the X and Y coordinates of the initial painting point of content are proportional to the window's position. Example:

Screenshot of a Nextcloud window positioned at (0,0)

At (100, 100):

At (0, 100):

Genymotion:

If I change the Scene Graph graphics backend to "software", this issue does not occur.