Firebase hangs the editor

Hi,

Im trying to set up FIrebase Analytics but the first method calls cause Unity to hang. Does anyone have any ideas?

I using unity 2020.1.17f.

I have the google apis installed via the Package Manager:
App Core 7.0.2
Analytics 7.0.2
Crashlytics 7.0.2

The first bit works:

Code (CSharp):

1. FirebaseApp.CheckAndFixDependenciesAsync().ContinueWithOnMainThread(task =>
2.         {
3.             m_dependencyStatus = task.Result;
4.  
5.             if (m_dependencyStatus == DependencyStatus.Available)
6.             {
7.                 InitializeFirebase();
8.             }
9.             else
10.             {
11.                 Debug.LogError($"Could not resolve all Firebase dependencies: {m_dependencyStatus}");
12.             }
13.         });

but then in the InitializeFirebase, any calls to FIrebaseAnalytics cause it to hang.

Code (CSharp):

1.     private static void InitializeFirebase()
2.     {
3.         FirebaseAnalytics.SetAnalyticsCollectionEnabled(true);
4.  
5.         // Set default session duration values.
6.         FirebaseAnalytics.SetSessionTimeoutDuration(new TimeSpan(0, 30, 0));
7.  
8.  
9.     }