React Navigation : can't open keyboard with createMaterialTopTabNavigator()

With react-navigation/native (5.9.4) and iOS (tested on iPhone 8), I can't use createMaterialBottomTabNavigator() (5.3.15) and createMaterialTopTabNavigator() (5.3.15).

When I use these two features the keyboard won't open (or close immediately) on iOS. This makes the inputs totally unusable.

I recreated a very simple model. With Snack Expo, On Android, everything works fine, on iOS, the keyboard does not open :

https://snack.expo.io/xUeskyMm-

In /Navigator/BottomTabNavigator, you can change uncomment/comment code :

const BottomTabNavigator = () => {
  return (
    <Tab.Navigator>
      {/*
      <Tab.Screen
        name="GymTopTab"
        component={GymTopTabNavigator}
        options={{
          tabBarLabel: "Séances",
        }}
      />
      */}
      <Tab.Screen
        name="TrainingStack"
        component={TrainingStackNavigator}
        options={{
          tabBarLabel: "Séances",
        }}
      />
    </Tab.Navigator>
  )
}

When I'm not using createMaterialTopTabNavigator() everything works fine. This is why I think the bug occurs when I use createMaterialBottomTabNavigator() and createMaterialTopTabNavigator() together. But I am very surprised that such a basic situation causes such a big problem.