diff --git a/packages/SystemUI/src/com/android/systemui/shade/PanelViewController.java b/packages/SystemUI/src/com/android/systemui/shade/PanelViewController.java
index 1a8a6d1..4aad245 100644
--- a/packages/SystemUI/src/com/android/systemui/shade/PanelViewController.java
+++ b/packages/SystemUI/src/com/android/systemui/shade/PanelViewController.java
@@ -171,6 +171,7 @@
     private float mInitialTouchY;
     private float mInitialTouchX;
     private boolean mTouchDisabled;
+    private boolean mInitialTouchFromKeyguard;
 
     /**
      * Whether or not the PanelView can be expanded or collapsed with a drag.
@@ -395,6 +396,7 @@
         mInitialOffsetOnTouch = expandedHeight;
         mInitialTouchY = newY;
         mInitialTouchX = newX;
+        mInitialTouchFromKeyguard = mStatusBarStateController.getState() == StatusBarState.KEYGUARD;
         if (startTracking) {
             mTouchSlopExceeded = true;
             setExpandedHeight(mInitialOffsetOnTouch);
@@ -417,20 +419,14 @@
                     mStatusBarStateController.getState() == StatusBarState.KEYGUARD;
 
             final boolean expand;
-            if (event.getActionMasked() == MotionEvent.ACTION_CANCEL || forceCancel) {
-                // If the keyguard is fading away, don't expand it again. This can happen if you're
-                // swiping to unlock, the app below the keyguard is in landscape, and the screen
-                // rotates while your finger is still down after the swipe to unlock.
-                if (mKeyguardStateController.isKeyguardFadingAway()) {
-                    expand = false;
-                } else if (onKeyguard) {
+            if (mKeyguardStateController.isKeyguardFadingAway()
+                    || (mInitialTouchFromKeyguard && !onKeyguard)) {
+                // Don't expand for any touches that started from the keyguard and ended after the
+                // keyguard is gone.
+                expand = false;
+            } else if (event.getActionMasked() == MotionEvent.ACTION_CANCEL || forceCancel) {
+                if (onKeyguard) {
                     expand = true;
-                } else if (mKeyguardStateController.isKeyguardFadingAway()) {
-                    // If we're in the middle of dismissing the keyguard, don't expand due to the
-                    // cancelled gesture. Gesture cancellation during an unlock is expected in some
-                    // situations, such keeping your finger down while swiping to unlock to an app
-                    // that is locked in landscape (the rotation will cancel the touch event).
-                    expand = false;
                 } else if (mCentralSurfaces.isBouncerShowingOverDream()) {
                     expand = false;
                 } else {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java
index 26017b3..3880ee3 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java
@@ -19,6 +19,7 @@
 import static android.view.WindowInsets.Type.navigationBars;
 
 import static com.android.systemui.plugins.ActivityStarter.OnDismissAction;
+import static com.android.systemui.statusbar.phone.BiometricUnlockController.MODE_DISMISS_BOUNCER;
 import static com.android.systemui.statusbar.phone.BiometricUnlockController.MODE_UNLOCK_COLLAPSING;
 import static com.android.systemui.statusbar.phone.BiometricUnlockController.MODE_WAKE_AND_UNLOCK;
 import static com.android.systemui.statusbar.phone.BiometricUnlockController.MODE_WAKE_AND_UNLOCK_PULSING;
@@ -387,6 +388,7 @@
             mBouncer.setExpansion(KeyguardBouncer.EXPANSION_VISIBLE);
         } else if (mShowing && !hideBouncerOverDream) {
             if (!isWakeAndUnlocking()
+                    && !(mBiometricUnlockController.getMode() == MODE_DISMISS_BOUNCER)
                     && !mCentralSurfaces.isInLaunchTransition()
                     && !isUnlockCollapsing()) {
                 mBouncer.setExpansion(fraction);
@@ -398,9 +400,8 @@
             }
         } else if (!mShowing && mBouncer.inTransit()) {
             // Keyguard is not visible anymore, but expansion animation was still running.
-            // We need to keep propagating the expansion state to the bouncer, otherwise it will be
-            // stuck in transit.
-            mBouncer.setExpansion(fraction);
+            // We need to hide the bouncer, otherwise it will be stuck in transit.
+            mBouncer.setExpansion(KeyguardBouncer.EXPANSION_HIDDEN);
         } else if (mPulsing && fraction == KeyguardBouncer.EXPANSION_VISIBLE) {
             // Panel expanded while pulsing but didn't translate the bouncer (because we are
             // unlocked.) Let's simply wake-up to dismiss the lock screen.
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManagerTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManagerTest.java
index 1046dbc..2dcdcfc 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManagerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManagerTest.java
@@ -202,12 +202,12 @@
     }
 
     @Test
-    public void onPanelExpansionChanged_propagatesToBouncer_evenAfterHidden() {
+    public void onPanelExpansionChanged_hideBouncer_afterKeyguardHidden() {
         mStatusBarKeyguardViewManager.hide(0, 0);
         when(mBouncer.inTransit()).thenReturn(true);
 
         mStatusBarKeyguardViewManager.onPanelExpansionChanged(EXPANSION_EVENT);
-        verify(mBouncer).setExpansion(eq(EXPANSION_EVENT.getFraction()));
+        verify(mBouncer).setExpansion(eq(KeyguardBouncer.EXPANSION_HIDDEN));
     }
 
     @Test
@@ -249,6 +249,23 @@
     }
 
     @Test
+    public void onPanelExpansionChanged_neverTranslatesBouncerWhenDismissBouncer() {
+        // Since KeyguardBouncer.EXPANSION_VISIBLE = 0 panel expansion, if the unlock is dismissing
+        // the bouncer, there may be an onPanelExpansionChanged(0) call to collapse the panel
+        // which would mistakenly cause the bouncer to show briefly before its visibility
+        // is set to hide. Therefore, we don't want to propagate panelExpansionChanged to the
+        // bouncer if the bouncer is dismissing as a result of a biometric unlock.
+        when(mBiometricUnlockController.getMode())
+                .thenReturn(BiometricUnlockController.MODE_DISMISS_BOUNCER);
+        mStatusBarKeyguardViewManager.onPanelExpansionChanged(
+                expansionEvent(
+                        /* fraction= */ KeyguardBouncer.EXPANSION_VISIBLE,
+                        /* expanded= */ true,
+                        /* tracking= */ false));
+        verify(mBouncer, never()).setExpansion(anyFloat());
+    }
+
+    @Test
     public void onPanelExpansionChanged_neverTranslatesBouncerWhenLaunchingApp() {
         when(mCentralSurfaces.isInLaunchTransition()).thenReturn(true);
         mStatusBarKeyguardViewManager.onPanelExpansionChanged(