diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
index bc69088416..049c672f5b 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
@@ -32,6 +32,7 @@ import android.net.Uri;
 import android.os.Handler;
 import android.os.SystemProperties;
 import android.provider.Settings;
+import android.util.Log;
 import android.view.Display;
 
 import androidx.annotation.NonNull;
@@ -224,8 +225,13 @@ public class TaskbarManager {
             return;
         }
         mActivity = activity;
-        mUnfoldProgressProvider.setSourceProvider(getUnfoldTransitionProgressProviderForActivity(
-                activity));
+        UnfoldTransitionProgressProvider unfoldTransitionProgressProvider =
+                getUnfoldTransitionProgressProviderForActivity(activity);
+        if (unfoldTransitionProgressProvider == null) {
+            Log.e("b/261320823", "UnfoldTransitionProgressProvider null in setActivity. "
+                    + "Unfold animation for launcher will not work.");
+        }
+        mUnfoldProgressProvider.setSourceProvider(unfoldTransitionProgressProvider);
 
         if (mTaskbarActivityContext != null) {
             mTaskbarActivityContext.setUIController(
diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index 36d968632c..13d0be507a 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -63,6 +63,7 @@ import android.os.Bundle;
 import android.os.CancellationSignal;
 import android.os.IBinder;
 import android.os.SystemProperties;
+import android.util.Log;
 import android.view.Display;
 import android.view.HapticFeedbackConstants;
 import android.view.RemoteAnimationTarget;
@@ -720,6 +721,7 @@ public class QuickstepLauncher extends Launcher {
                     mUnfoldTransitionProgressProvider,
                     mRotationChangeProvider
             );
+            Log.d("b/261320823", "initUnfoldTransitionProgressProvider completed");
         }
     }