Back Icon Does Not Display On Android

[thecodecafe]

Version

Tell us which versions you are using:

• react-native-router-flux v3.43.0
• react-native v0.55.4

Expected behaviour

The back icon for the navbar does not show on android.

Actual behaviour

The back icon does not display when i navigate to a new screen on android, but does in iOS

Steps to reproduce

Below is what the scene looks like.

<Scene key='Login' component={LoginScreen} 
  hideNavBar={true} hideTabBar={true}
  backButtonImage={backIcon.icon}
  leftButtonIconStyle={[Styles.navbar.imageIcon, Styles.navbar.back]}
  navigationBarStyle={Styles.navbar.container}/>

It's quite sad I've come so far into the project i'm in only to realise so many problems with this package.
:(

[aksonov]

Please try to reproduce it with Example project and latest version 4.0.0-beta.40. Feel free to open if the issue still exists