Qt Quick controls / items are placed under application title bar

When creating a template application of QtQuick Controls 2, or using the Planets example, the all the rendered elements go behind title bar. All input elements such as buttons and textedits still accept inputs in their intended place, even when they are rendered elsewhere.

Reproducibility of this bug is low, attached qtdiag output of a setup where it does reproduce. This issue does not reproduce when using ANGLE or software rendering, only with desktop opengl.

Steps to reproduce:

• Create Controls 2 template application
• Run it
• EXPECTED: Textedit and Button in the initial tab are not behind the title bar
• ACTUAL: Textedit and Button are rendered below the title bar (non client area), but still accept inputs in their intended place