White flashes when transitioning between scenes when calling `Actions.ComponentName()`

### Version
Tell us which versions you are using:

- react-native-router-flux v4.0.6
- react v16.9.0
- react-native v0.61.4

### Expected behaviour
Smooth Scene transitions when using `Actions.ComponentName()`

### Actual behaviour
Quick white flashes when transitioning between scenes when calling `Actions.ComponentName()`. Is there a way to turn off the animation or stop flickers?
This problem doesn't occur when using Actions.replace('ComponentName') and you don't get the animation either so I assume it's because of the animation. It may be particularly visible when the app has a dark background