diff --git a/app/build.gradle b/app/build.gradle
index 79189fb11..42fb76950 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -15,8 +15,8 @@ android {
         targetSdkVersion 27
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
 
-        versionCode 58
-        versionName "3.0.0beta7"
+        versionCode 59
+        versionName "3.0.0beta8"
 
         flavorDimensions "default"
         renderscriptTargetApi 19
diff --git a/app/src/main/java/com/nextcloud/talk/controllers/CallController.java b/app/src/main/java/com/nextcloud/talk/controllers/CallController.java
index 1f663a87d..005a0bd96 100644
--- a/app/src/main/java/com/nextcloud/talk/controllers/CallController.java
+++ b/app/src/main/java/com/nextcloud/talk/controllers/CallController.java
@@ -80,6 +80,7 @@ import com.nextcloud.talk.utils.bundle.BundleKeys;
 import com.nextcloud.talk.utils.database.user.UserUtils;
 import com.nextcloud.talk.utils.glide.GlideApp;
 import com.nextcloud.talk.utils.preferences.AppPreferences;
+import com.nextcloud.talk.utils.singletons.ApplicationWideApiHolder;
 import com.nextcloud.talk.utils.singletons.ApplicationWideCurrentRoomHolder;
 import com.nextcloud.talk.webrtc.MagicAudioManager;
 import com.nextcloud.talk.webrtc.MagicPeerConnectionWrapper;
@@ -182,7 +183,6 @@ public class CallController extends BaseController {
     @BindView(R.id.conversationRelativeLayoutView)
     RelativeLayout conversationView;
 
-    @Inject
     NcApi ncApi;
     @Inject
     EventBus eventBus;
@@ -302,6 +302,8 @@ public class CallController extends BaseController {
                 .setRepeatMode(PulseAnimation.REVERSE);
 
 
+        ncApi = ApplicationWideApiHolder.getInstance().getNcApiInstanceForAccountId(conversationUser.getId(), baseUrl);
+
         try {
             cache.evictAll();
         } catch (IOException e) {
diff --git a/app/src/main/java/com/nextcloud/talk/controllers/ChatController.java b/app/src/main/java/com/nextcloud/talk/controllers/ChatController.java
index b016e7bd6..f9ffb0ade 100644
--- a/app/src/main/java/com/nextcloud/talk/controllers/ChatController.java
+++ b/app/src/main/java/com/nextcloud/talk/controllers/ChatController.java
@@ -83,6 +83,7 @@ import com.nextcloud.talk.utils.NotificationUtils;
 import com.nextcloud.talk.utils.bundle.BundleKeys;
 import com.nextcloud.talk.utils.database.user.UserUtils;
 import com.nextcloud.talk.utils.glide.GlideApp;
+import com.nextcloud.talk.utils.singletons.ApplicationWideApiHolder;
 import com.nextcloud.talk.utils.singletons.ApplicationWideCurrentRoomHolder;
 import com.otaliastudios.autocomplete.Autocomplete;
 import com.otaliastudios.autocomplete.AutocompleteCallback;
@@ -99,7 +100,6 @@ import com.webianks.library.PopupBubble;
 
 import org.parceler.Parcels;
 
-import java.io.IOException;
 import java.lang.reflect.Field;
 import java.util.ArrayList;
 import java.util.Date;
@@ -117,7 +117,6 @@ import io.reactivex.Observer;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.Disposable;
 import io.reactivex.schedulers.Schedulers;
-import okhttp3.Cache;
 import retrofit2.HttpException;
 import retrofit2.Response;
 
@@ -125,12 +124,9 @@ import retrofit2.Response;
 public class ChatController extends BaseController implements MessagesListAdapter.OnLoadMoreListener,
         MessagesListAdapter.Formatter<Date>, MessagesListAdapter.OnMessageLongClickListener, MessageHolders.ContentChecker {
     private static final String TAG = "ChatController";
-    @Inject
     NcApi ncApi;
     @Inject
     UserUtils userUtils;
-    @Inject
-    Cache cache;
     @BindView(R.id.messagesListView)
     MessagesList messagesListView;
     @BindView(R.id.messageInputView)
@@ -300,16 +296,12 @@ public class ChatController extends BaseController implements MessagesListAdapte
         sendHiTextView.setText(String.format(getResources().getString(R.string.nc_chat_empty), getResources()
                 .getString(R.string.nc_hello)));
 
+        ncApi = ApplicationWideApiHolder.getInstance().getNcApiInstanceForAccountId(conversationUser.getId(), baseUrl);
+
         if (adapter == null) {
 
             loadingProgressBar.setVisibility(View.VISIBLE);
 
-            try {
-                cache.evictAll();
-            } catch (IOException e) {
-                Log.e(TAG, "Failed to evict cache");
-            }
-
             adapterWasNull = true;
 
             MessageHolders messageHolders = new MessageHolders();
diff --git a/app/src/main/java/com/nextcloud/talk/controllers/bottomsheet/OperationsMenuController.java b/app/src/main/java/com/nextcloud/talk/controllers/bottomsheet/OperationsMenuController.java
index 076ebdc7b..a4ba65f28 100644
--- a/app/src/main/java/com/nextcloud/talk/controllers/bottomsheet/OperationsMenuController.java
+++ b/app/src/main/java/com/nextcloud/talk/controllers/bottomsheet/OperationsMenuController.java
@@ -56,6 +56,7 @@ import com.nextcloud.talk.models.json.participants.AddParticipantOverall;
 import com.nextcloud.talk.models.json.rooms.Conversation;
 import com.nextcloud.talk.models.json.rooms.RoomOverall;
 import com.nextcloud.talk.utils.ApiUtils;
+import com.nextcloud.talk.utils.singletons.ApplicationWideApiHolder;
 import com.nextcloud.talk.utils.singletons.ApplicationWideMessageHolder;
 import com.nextcloud.talk.utils.DisplayUtils;
 import com.nextcloud.talk.utils.bundle.BundleKeys;
@@ -95,7 +96,6 @@ public class OperationsMenuController extends BaseController {
     @BindView(R.id.web_button)
     Button webButton;
 
-    @Inject
     NcApi ncApi;
 
     @Inject
@@ -156,6 +156,8 @@ public class OperationsMenuController extends BaseController {
         super.onViewBound(view);
         NextcloudTalkApplication.getSharedApplication().getComponentApplication().inject(this);
 
+        ncApi = ApplicationWideApiHolder.getInstance().getNcApiInstanceForAccountId(userUtils.getCurrentUser().getId
+                (), null);
         processOperation();
     }
 
diff --git a/app/src/main/java/com/nextcloud/talk/presenters/MentionAutocompletePresenter.java b/app/src/main/java/com/nextcloud/talk/presenters/MentionAutocompletePresenter.java
index 9202e2e6e..f90939c69 100644
--- a/app/src/main/java/com/nextcloud/talk/presenters/MentionAutocompletePresenter.java
+++ b/app/src/main/java/com/nextcloud/talk/presenters/MentionAutocompletePresenter.java
@@ -69,6 +69,7 @@ public class MentionAutocompletePresenter extends RecyclerViewPresenter<Mention>
         super(context);
         this.context = context;
         NextcloudTalkApplication.getSharedApplication().getComponentApplication().inject(this);
+        setupNcApi();
     }
 
     public MentionAutocompletePresenter(Context context, String roomToken) {
@@ -76,6 +77,7 @@ public class MentionAutocompletePresenter extends RecyclerViewPresenter<Mention>
         this.roomToken = roomToken;
         this.context = context;
         NextcloudTalkApplication.getSharedApplication().getComponentApplication().inject(this);
+        setupNcApi();
     }
 
     private void setupNcApi() {
diff --git a/app/src/main/java/com/nextcloud/talk/utils/singletons/ApplicationWideApiHolder.java b/app/src/main/java/com/nextcloud/talk/utils/singletons/ApplicationWideApiHolder.java
index 660567ee1..900d0be30 100644
--- a/app/src/main/java/com/nextcloud/talk/utils/singletons/ApplicationWideApiHolder.java
+++ b/app/src/main/java/com/nextcloud/talk/utils/singletons/ApplicationWideApiHolder.java
@@ -66,7 +66,7 @@ public class ApplicationWideApiHolder {
 
         if (!ncApiHashMap.containsKey(accountId)) {
             UserEntity userAccount = userUtils.getUserWithId(accountId);
-            if (userAccount == null || !TextUtils.isEmpty(baseUrl)) {
+            if (userAccount == null || (userAccount.getId() == -1 && !TextUtils.isEmpty(baseUrl))) {
                 retrofit = retrofit.newBuilder().baseUrl(baseUrl).build();
                 return retrofit.create(NcApi.class);
             } else {