diff --git a/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/rendering/sdk/InitializationNotifier.java b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/rendering/sdk/InitializationNotifier.java
index 669586bb4..8e5eebc6e 100644
--- a/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/rendering/sdk/InitializationNotifier.java
+++ b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/rendering/sdk/InitializationNotifier.java
@@ -38,25 +38,29 @@ public void initializationCompleted(@Nullable String statusRequesterError) {
                 LogUtil.debug(TAG, "Prebid SDK " + PrebidMobile.SDK_VERSION + " initialized");
 
                 if (listener != null) {
-                    listener.onInitializationComplete(InitializationStatus.SUCCEEDED);
-
-                    listener.onSdkInit();
+                    //allows placing of bids to occur in InitializationListener
+                    postOnMainThread(() -> {
+                        listener.onInitializationComplete(InitializationStatus.SUCCEEDED);
+                        listener.onSdkInit();
+                        listener = null;
+                    });
                 }
             } else {
                 LogUtil.error(TAG, statusRequesterError);
 
                 if (listener != null) {
-                    InitializationStatus serverStatusWarning = InitializationStatus.SERVER_STATUS_WARNING;
-                    serverStatusWarning.setDescription(statusRequesterError);
-                    listener.onInitializationComplete(serverStatusWarning);
-
-                    listener.onSdkFailedToInit(new InitError(statusRequesterError));
+                    postOnMainThread(() -> {
+                        InitializationStatus serverStatusWarning = InitializationStatus.SERVER_STATUS_WARNING;
+                        serverStatusWarning.setDescription(statusRequesterError);
+                        listener.onInitializationComplete(serverStatusWarning);
+                        listener.onSdkFailedToInit(new InitError(statusRequesterError));
+                        listener = null;
+                    });
                 }
             }
 
             tasksCompletedSuccessfully = true;
             initializationInProgress = false;
-            listener = null;
         });
     }