実機でビルドするとRealtimeDataBaseのreferenceが参照できない

前提

unity editorでは参照されているのに、実機でビルドするとなぜか参照できません。
（以前は出来ていたのですが、何かをきっかけに出来なくなってしまいました...
何がきっかけだかはわかりません...）

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using Firebase;
using Firebase.Unity.Editor;
using Firebase.Database;

public class FirebaseManager : MonoBehaviour {

   DatabaseReference reference;

   public GameObject rankingSpace;

   void Start() {
     // Set up the Editor before calling into the realtime database.
FirebaseApp.DefaultInstance.SetEditorDatabaseUrl("https://<FirebaseのプロジェクトID>.firebaseio.com/");

   // Get the root reference location of the database.
   reference = FirebaseDatabase.DefaultInstance.RootReference;
   
   Firebase.FirebaseApp.CheckAndFixDependenciesAsync().ContinueWith(task => {
      var dependencyStatus = task.Result;
      if (dependencyStatus == Firebase.DependencyStatus.Available) {
      // Create and hold a reference to your FirebaseApp, i.e.
      //   app = Firebase.FirebaseApp.DefaultInstance;
      // where app is a Firebase.FirebaseApp property of your application class.

      // Set a flag here indicating that Firebase is ready to use by your
      // application.
      } else {
         UnityEngine.Debug.LogError(System.String.Format("Could not resolve all Firebase dependencies: {0}", dependencyStatus));
          // Firebase Unity SDK is not safe to use here.
		  }
      });
      Debug.Log("ref:"+reference);
   }
}

発生している問題・エラーメッセージ

上記のコードをオブジェクトにアタッチして、UnityEditor上でビルドすると、しっかりreferenceが表示されます。
しかし、実機（iOS,Android）でビルドするとなぜだか何も表示されません。

エラーメッセージ

エラーメッセージはないのですが、
ログの中で気になったところを以下に書きます。

//1
2018-11-04 00:28:33.931490+0900 BoundBasket[15610:331408] ERROR: Unable to configure Firebase services: Google Analytics for Firebase version (50200000) does not match with Google App Measurement (50300000) version. Please update.
Unable to configure Firebase services: Google Analytics for Firebase version (50200000) does not match with Google App Measurement (50300000) version. Please update.

//2
InitializationException:  Firebase app creation failed.
  at Firebase.FirebaseApp.CreateAndTrack (Firebase.CreateDelegate createDelegate, Firebase.FirebaseApp existingProxy) [0x00000] in <filename unknown>:0 
  at FirebaseManager.Start () [0x00000] in <filename unknown>:0 

//3
2018-11-04 00:28:33.935251+0900 BoundBasket[15610:331408] [ADG][InADGGeolocationProvider startRecurringLocationUpdates][DEBUG] Location update is disabled.
2018-11-04 00:28:33.948722+0900 BoundBasket[15610:331408] [ADG][InADGGeolocationProvider startRecurringLocationUpdates][DEBUG] Location update is disabled.
2018-11-04 00:28:34.571395+0900 BoundBasket[15610:331443] [Client] Remote object proxy returned error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated.}
2018-11-04 00:28:34.571396+0900 BoundBasket[15610:331408] [Client] Synchronous remote object proxy returned error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated.}
2018-11-04 00:28:34.571615+0900 BoundBasket[15610:331408] [NetworkInfo] Descriptors query returned error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service named com.app2018-11-04 00:28:34.571616+0900 BoundBasket[15610:331443] [Client] Remote object proxy returned error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated.}