Q:

Android Studio 3.2 canary build is not rendering Navigation tag

Android studio 3.2 canary 14 is not rendering the navigation tag. It just shows the waiting for a build to finish.
navigation_graph
<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <fragment
        android:id="@+id/fragment_nav_host"
        android:name="androidx.navigation.fragment.NavHostFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:defaultNavHost="true"
        app:navGraph="@navigation/navigation_graph" />
</navigation>

A:

You need to 

turn on experimental feature "enable navigation editor" 
under menu> android studio>preferences>experimental
clean and rebuild project

