Material design not working on android

• Dev machine
  • Ubuntu 19.10
  • Qt 5.14 beta 3
  • QtCreator 4.11 beta 2
• Android device
  • Galaxy Tab S6 2019
  • Android 9

Following did not help:

setting material via env

qputenv("QT_QUICK_CONTROLS_STYLE", "Material");

setting via

 QQuickStyle::setStyle("Material");

or qtquickcontrols2.conf

Steps to reproduce:

Create an hello world qml app with QQC2 buttons and enable material design. No QQC2 style gets loaded. See buildLog.txt