diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index ca4f0ea..e788cc4 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -51,6 +51,7 @@
 import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
 import static com.android.quickstep.util.ActiveGestureErrorDetector.GestureEvent.CANCEL_RECENTS_ANIMATION;
 import static com.android.quickstep.util.ActiveGestureErrorDetector.GestureEvent.EXPECTING_TASK_APPEARED;
+import static com.android.quickstep.util.ActiveGestureErrorDetector.GestureEvent.INVALID_VELOCITY_ON_SWIPE_UP;
 import static com.android.quickstep.util.ActiveGestureErrorDetector.GestureEvent.LAUNCHER_DESTROYED;
 import static com.android.quickstep.util.ActiveGestureErrorDetector.GestureEvent.ON_SETTLED_ON_END_TARGET;
 import static com.android.quickstep.views.RecentsView.UPDATE_SYSUI_FLAGS_THRESHOLD;
@@ -1214,6 +1215,11 @@
 
     private GestureEndTarget calculateEndTarget(
             PointF velocityPxPerMs, float endVelocityPxPerMs, boolean isFlingY, boolean isCancel) {
+
+        ActiveGestureErrorDetector.GestureEvent gestureEvent =
+                velocityPxPerMs.x == 0 && velocityPxPerMs.y == 0
+                        ? INVALID_VELOCITY_ON_SWIPE_UP
+                        : null;
         ActiveGestureLog.INSTANCE.addLog(
                 new ActiveGestureLog.CompoundString("calculateEndTarget: velocities=(x=")
                         .append(Float.toString(dpiFromPx(velocityPxPerMs.x)))
@@ -1221,7 +1227,7 @@
                         .append(Float.toString(dpiFromPx(velocityPxPerMs.y)))
                         .append("dp/ms), angle=")
                         .append(Double.toString(Math.toDegrees(Math.atan2(
-                                -velocityPxPerMs.y, velocityPxPerMs.x)))));
+                                -velocityPxPerMs.y, velocityPxPerMs.x)))), gestureEvent);
 
         if (mGestureState.isHandlingAtomicEvent()) {
             // Button mode, this is only used to go to recents.
diff --git a/quickstep/src/com/android/quickstep/util/ActiveGestureErrorDetector.java b/quickstep/src/com/android/quickstep/util/ActiveGestureErrorDetector.java
index f3cbcf9..20fa921 100644
--- a/quickstep/src/com/android/quickstep/util/ActiveGestureErrorDetector.java
+++ b/quickstep/src/com/android/quickstep/util/ActiveGestureErrorDetector.java
@@ -39,6 +39,7 @@
         SET_ON_PAGE_TRANSITION_END_CALLBACK, CANCEL_CURRENT_ANIMATION, CLEANUP_SCREENSHOT,
         SCROLLER_ANIMATION_ABORTED, TASK_APPEARED, EXPECTING_TASK_APPEARED,
         FLAG_USING_OTHER_ACTIVITY_INPUT_CONSUMER, LAUNCHER_DESTROYED, RECENT_TASKS_MISSING,
+        INVALID_VELOCITY_ON_SWIPE_UP,
 
         /**
          * These GestureEvents are specifically associated to state flags that get set in
@@ -266,6 +267,13 @@
                                     + "callback",
                             writer);
                     break;
+                case INVALID_VELOCITY_ON_SWIPE_UP:
+                    errorDetected |= printErrorIfTrue(
+                            true,
+                            prefix,
+                            /* errorMessage= */ "invalid velocity on swipe up gesture.",
+                            writer);
+                    break;
                 case START_RECENTS_ANIMATION:
                     lastStartRecentAnimationEventEntryTime = eventEntry.getTime();
                     break;