diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
index 0fe5432..a700e16 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
@@ -23,6 +23,7 @@
 import static org.junit.Assert.assertTrue;
 
 import android.content.Intent;
+import android.util.Log;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -36,6 +37,7 @@
 import com.android.launcher3.tapl.Overview;
 import com.android.launcher3.tapl.OverviewActions;
 import com.android.launcher3.tapl.OverviewTask;
+import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.ui.TaplTestsLauncher3;
 import com.android.quickstep.NavigationModeSwitchRule.NavigationModeSwitch;
 import com.android.quickstep.views.RecentsView;
@@ -187,10 +189,12 @@
     @NavigationModeSwitch
     @PortraitLandscape
     public void testSwitchToOverview() throws Exception {
+        Log.d(TestProtocol.LAUNCHER_NOT_TRANSPOSED, "testSwitchToOverview");
         assertNotNull("Workspace.switchToOverview() returned null",
                 mLauncher.pressHome().switchToOverview());
         assertTrue("Launcher internal state didn't switch to Overview",
                 isInState(() -> LauncherState.OVERVIEW));
+        Log.d(TestProtocol.LAUNCHER_NOT_TRANSPOSED, "testSwitchToOverview finished");
     }
 
     @Test
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 985a445..dae4f3b 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -25,6 +25,7 @@
 import android.graphics.Point;
 import android.graphics.PointF;
 import android.graphics.Rect;
+import android.util.Log;
 import android.view.Surface;
 import android.view.WindowInsets;
 import android.view.WindowManager;
@@ -35,6 +36,7 @@
 import com.android.launcher3.graphics.IconShape;
 import com.android.launcher3.icons.DotRenderer;
 import com.android.launcher3.icons.IconNormalizer;
+import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.DisplayController.Info;
 import com.android.launcher3.util.WindowBounds;
@@ -973,6 +975,10 @@
             mInfo = info;
             mTransposeLayoutWithOrientation = context.getResources()
                     .getBoolean(R.bool.hotseat_transpose_layout_with_orientation);
+            if (TestProtocol.sDebugTracing) {
+                Log.d(TestProtocol.LAUNCHER_NOT_TRANSPOSED,
+                        "transposeLayout=" + mTransposeLayoutWithOrientation);
+            }
         }
 
         public Builder setSizeRange(Point minSize, Point maxSize) {
@@ -985,6 +991,10 @@
             mWidth = width;
             mHeight = height;
             mIsLandscape = mWidth > mHeight;
+            if (TestProtocol.sDebugTracing) {
+                Log.d(TestProtocol.LAUNCHER_NOT_TRANSPOSED,
+                        "isLandscape=" + mIsLandscape + " w=" + mWidth + " h=" + mHeight);
+            }
             return this;
         }
 
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index f198777..a863e6b 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -48,6 +48,7 @@
 import androidx.annotation.VisibleForTesting;
 
 import com.android.launcher3.graphics.IconShape;
+import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.util.ConfigMonitor;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.DisplayController.Info;
@@ -338,6 +339,10 @@
         DeviceProfile.Builder builder = new DeviceProfile.Builder(context, this, displayInfo)
                 .setSizeRange(new Point(displayInfo.smallestSize),
                         new Point(displayInfo.largestSize));
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.LAUNCHER_NOT_TRANSPOSED,
+                    "largeSide=" + largeSide + " smallSide=" + smallSide);
+        }
 
         landscapeProfile = builder.setSize(largeSide, smallSide).build();
         portraitProfile = builder.setSize(smallSide, largeSide).build();
@@ -571,6 +576,10 @@
     }
 
     public DeviceProfile getDeviceProfile(Context context) {
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.LAUNCHER_NOT_TRANSPOSED, "getDeviceProfile: orientation="
+                    + context.getResources().getConfiguration().orientation, new Throwable());
+        }
         return context.getResources().getConfiguration().orientation
                 == Configuration.ORIENTATION_LANDSCAPE ? landscapeProfile : portraitProfile;
     }
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 3236f5d..30dd548 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -566,7 +566,9 @@
     }
 
     private void onIdpChanged(InvariantDeviceProfile idp) {
-
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.LAUNCHER_NOT_TRANSPOSED, "onIdpChanged", new Throwable());
+        }
         initDeviceProfile(idp);
         dispatchDeviceProfileChanged();
         reapplyUi();
diff --git a/src/com/android/launcher3/testing/TestProtocol.java b/src/com/android/launcher3/testing/TestProtocol.java
index 18f1df1..3296ea5 100644
--- a/src/com/android/launcher3/testing/TestProtocol.java
+++ b/src/com/android/launcher3/testing/TestProtocol.java
@@ -109,6 +109,7 @@
     public static final String REQUEST_MOCK_SENSOR_ROTATION = "mock-sensor-rotation";
 
     public static final String PERMANENT_DIAG_TAG = "TaplTarget";
+    public static final String LAUNCHER_NOT_TRANSPOSED = "b/185820525";
     public static final String NO_SWIPE_TO_HOME = "b/158017601";
     public static final String WORK_PROFILE_REMOVED = "b/159671700";
     public static final String TIS_NO_EVENTS = "b/180915942";
diff --git a/tests/src/com/android/launcher3/ui/PortraitLandscapeRunner.java b/tests/src/com/android/launcher3/ui/PortraitLandscapeRunner.java
index 266f0ae..6c68daa 100644
--- a/tests/src/com/android/launcher3/ui/PortraitLandscapeRunner.java
+++ b/tests/src/com/android/launcher3/ui/PortraitLandscapeRunner.java
@@ -4,6 +4,7 @@
 import android.view.Surface;
 
 import com.android.launcher3.tapl.TestHelpers;
+import com.android.launcher3.testing.TestProtocol;
 
 import org.junit.rules.TestRule;
 import org.junit.runner.Description;
@@ -54,19 +55,23 @@
             }
 
             private void evaluateInPortrait() throws Throwable {
+                Log.d(TestProtocol.LAUNCHER_NOT_TRANSPOSED, "evaluateInPortrait");
                 mTest.mDevice.setOrientationNatural();
                 mTest.mLauncher.setExpectedRotation(Surface.ROTATION_0);
                 AbstractLauncherUiTest.checkDetectedLeaks(mTest.mLauncher);
                 base.evaluate();
                 mTest.getDevice().pressHome();
+                Log.d(TestProtocol.LAUNCHER_NOT_TRANSPOSED, "evaluateInPortrait finished");
             }
 
             private void evaluateInLandscape() throws Throwable {
+                Log.d(TestProtocol.LAUNCHER_NOT_TRANSPOSED, "evaluateInLandscape");
                 mTest.mDevice.setOrientationLeft();
                 mTest.mLauncher.setExpectedRotation(Surface.ROTATION_90);
                 AbstractLauncherUiTest.checkDetectedLeaks(mTest.mLauncher);
                 base.evaluate();
                 mTest.getDevice().pressHome();
+                Log.d(TestProtocol.LAUNCHER_NOT_TRANSPOSED, "evaluateInLandscape finished");
             }
         };
     }