Why is the MDToolvar icon not showing on Android?(Kivy)

Question

I am building a kivy based Android app. At the moment when I run the app on Linux the MDToolbar shows the menu icon without a problem. But when I build the app for Android with menu icon dosent show up. The lambda function works even if the icon is not presented.

Here is an image that shows the problem.

This is the kv code.

MDToolbar:
  id: mainToolbar
  title: "APP name"
  left_action_items: [['menu', lambda x: navDrawer.set_state("open")]]

Any ideas why is this happening?

Answer 1

I've been able to fix this by upgrading Kivy to version 2.0.0.