diff --git a/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java b/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
index cc5a923..2d25295 100644
--- a/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
+++ b/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
@@ -44,7 +44,6 @@
 import android.view.RemoteAnimationTarget;
 import android.view.SurfaceControl;
 import android.view.View;
-import android.view.animation.AnimationUtils;
 import android.view.animation.DecelerateInterpolator;
 import android.view.animation.Interpolator;
 import android.window.BackEvent;
@@ -84,7 +83,6 @@
  *
  */
 public class LauncherBackAnimationController {
-    private static final int CANCEL_TRANSITION_DURATION = 233;
     private static final int SCRIM_FADE_DURATION = 233;
     private static final float MIN_WINDOW_SCALE = 0.85f;
     private static final float MAX_SCRIM_ALPHA_DARK = 0.8f;
@@ -95,15 +93,12 @@
     private final Matrix mTransformMatrix = new Matrix();
     /** The window position at the beginning of the back animation. */
     private final Rect mStartRect = new Rect();
-    /** The window position when the back gesture is cancelled. */
-    private final RectF mCancelRect = new RectF();
     /** The current window position. */
     private final RectF mCurrentRect = new RectF();
     private final QuickstepLauncher mLauncher;
     private final int mWindowScaleMarginX;
     private float mWindowScaleEndCornerRadius;
     private float mWindowScaleStartCornerRadius;
-    private final Interpolator mCancelInterpolator;
     private final Interpolator mProgressInterpolator = Interpolators.STANDARD_DECELERATE;
     private final Interpolator mVerticalMoveInterpolator = new DecelerateInterpolator();
     private final PointF mInitialTouchPos = new PointF();
@@ -142,8 +137,6 @@
         loadCornerRadius();
         mWindowScaleMarginX = mLauncher.getResources().getDimensionPixelSize(
                 R.dimen.swipe_back_window_scale_x_margin);
-        mCancelInterpolator =
-                AnimationUtils.loadInterpolator(mLauncher, R.interpolator.standard_interpolator);
     }
 
     /**
@@ -181,8 +174,7 @@
             mHandler.post(() -> {
                 LauncherBackAnimationController controller = mControllerRef.get();
                 if (controller != null) {
-                    mProgressAnimator.onBackCancelled(
-                            controller::resetPositionAnimated);
+                    mProgressAnimator.onBackCancelled(controller::onCancelFinished);
                 }
             });
         }
@@ -262,24 +254,9 @@
         public void onAnimationCancelled() {}
     }
 
-    private void resetPositionAnimated() {
-        ValueAnimator cancelAnimator = ValueAnimator.ofFloat(0, 1);
-        mCancelRect.set(mCurrentRect);
-        cancelAnimator.setDuration(CANCEL_TRANSITION_DURATION);
-        cancelAnimator.setInterpolator(mCancelInterpolator);
-        cancelAnimator.addUpdateListener(
-                animation -> {
-                    updateCancelProgress((float) animation.getAnimatedValue());
-                });
-        cancelAnimator.addListener(new AnimatorListenerAdapter() {
-            @Override
-            public void onAnimationEnd(Animator animation) {
-                // Refresh the status bar appearance to the original one.
-                customizeStatusBarAppearance(false);
-                finishAnimation();
-            }
-        });
-        cancelAnimator.start();
+    private void onCancelFinished() {
+        customizeStatusBarAppearance(false);
+        finishAnimation();
     }
 
     /** Unregisters the back to launcher callback in shell. */
@@ -292,6 +269,14 @@
     }
 
     private void startBack(BackMotionEvent backEvent) {
+        // in case we're still animating an onBackCancelled event, let's remove the finish-
+        // callback from the progress animator to prevent calling finishAnimation() before
+        // restarting a new animation
+        // Side note: startBack is never called during the post-commit phase if the back gesture
+        // was committed (not cancelled). BackAnimationController prevents that. Therefore we
+        // don't have to handle that case.
+        mProgressAnimator.removeOnBackCancelledFinishCallback();
+
         mBackInProgress = true;
         RemoteAnimationTarget appTarget = backEvent.getDepartingAnimationTarget();
 
@@ -314,7 +299,9 @@
                 new RemoteAnimationTarget[]{ mBackTarget });
         setLauncherTargetViewVisible(false);
         mCurrentRect.set(mStartRect);
-        addScrimLayer();
+        if (mScrimLayer == null) {
+            addScrimLayer();
+        }
         mTransaction.apply();
     }
 
@@ -397,23 +384,6 @@
         customizeStatusBarAppearance(progress > UPDATE_SYSUI_FLAGS_THRESHOLD);
     }
 
-    private void updateCancelProgress(float progress) {
-        if (mBackTarget == null) {
-            return;
-        }
-        mCurrentRect.set(
-                Utilities.mapRange(progress, mCancelRect.left, mStartRect.left),
-                Utilities.mapRange(progress, mCancelRect.top, mStartRect.top),
-                Utilities.mapRange(progress, mCancelRect.right, mStartRect.right),
-                Utilities.mapRange(progress, mCancelRect.bottom, mStartRect.bottom));
-
-        float endCornerRadius = Utilities.mapRange(
-                mBackProgress, mWindowScaleStartCornerRadius, mWindowScaleEndCornerRadius);
-        float cornerRadius = Utilities.mapRange(
-                progress, endCornerRadius, mWindowScaleStartCornerRadius);
-        applyTransform(mCurrentRect, cornerRadius);
-    }
-
     /** Transform the target window to match the target rect. */
     private void applyTransform(RectF targetRect, float cornerRadius) {
         final float scale = targetRect.width() / mStartRect.width();
@@ -484,7 +454,6 @@
         mBackInProgress = false;
         mBackProgress = 0;
         mTransformMatrix.reset();
-        mCancelRect.setEmpty();
         mCurrentRect.setEmpty();
         mStartRect.setEmpty();
         mInitialTouchPos.set(0, 0);