diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index 972ce4deda..45b2081952 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -122,6 +122,7 @@ import com.android.systemui.shared.system.TaskStackChangeListeners;
 
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.Arrays;
 import java.util.function.Consumer;
 
 /**
@@ -976,12 +977,13 @@ public abstract class AbsSwipeUpHandler<T extends StatefulActivity<S>,
     }
 
     /** @return Whether this was the task we were waiting to appear, and thus handled it. */
-    protected boolean handleTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {
+    protected boolean handleTaskAppeared(RemoteAnimationTargetCompat[] appearedTaskTarget) {
         if (mStateCallback.hasStates(STATE_HANDLER_INVALIDATED)) {
             return false;
         }
-        if (mStateCallback.hasStates(STATE_START_NEW_TASK)
-                && appearedTaskTarget.taskId == mGestureState.getLastStartedTaskId()) {
+        boolean hasStartedTaskBefore = Arrays.stream(appearedTaskTarget).anyMatch(
+                targetCompat -> targetCompat.taskId == mGestureState.getLastStartedTaskId());
+        if (mStateCallback.hasStates(STATE_START_NEW_TASK) && hasStartedTaskBefore) {
             reset();
             return true;
         }
@@ -1866,9 +1868,9 @@ public abstract class AbsSwipeUpHandler<T extends StatefulActivity<S>,
     }
 
     @Override
-    public void onTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {
+    public void onTasksAppeared(RemoteAnimationTargetCompat[] appearedTaskTargets) {
         if (mRecentsAnimationController != null) {
-            if (handleTaskAppeared(appearedTaskTarget)) {
+            if (handleTaskAppeared(appearedTaskTargets)) {
                 mRecentsAnimationController.finish(false /* toRecents */,
                         null /* onFinishComplete */);
                 mActivityInterface.onLaunchTaskSuccess();
diff --git a/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java b/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
index fed5ae56ea..a82137e07c 100644
--- a/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
@@ -147,7 +147,7 @@ public class FallbackSwipeHandler extends
     }
 
     @Override
-    protected boolean handleTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {
+    protected boolean handleTaskAppeared(RemoteAnimationTargetCompat[] appearedTaskTarget) {
         if (mActiveAnimationFactory != null
                 && mActiveAnimationFactory.handleHomeTaskAppeared(appearedTaskTarget)) {
             mActiveAnimationFactory = null;
@@ -260,7 +260,8 @@ public class FallbackSwipeHandler extends
             }
         }
 
-        public boolean handleHomeTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {
+        public boolean handleHomeTaskAppeared(RemoteAnimationTargetCompat[] appearedTaskTargets) {
+            RemoteAnimationTargetCompat appearedTaskTarget = appearedTaskTargets[0];
             if (appearedTaskTarget.activityType == ACTIVITY_TYPE_HOME) {
                 RemoteAnimationTargets targets = new RemoteAnimationTargets(
                         new RemoteAnimationTargetCompat[] {appearedTaskTarget},
diff --git a/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java b/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java
index 750985a3f8..dd6392cb9a 100644
--- a/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java
+++ b/quickstep/src/com/android/quickstep/RecentsAnimationCallbacks.java
@@ -136,10 +136,10 @@ public class RecentsAnimationCallbacks implements
 
     @BinderThread
     @Override
-    public void onTaskAppeared(RemoteAnimationTargetCompat app) {
+    public void onTasksAppeared(RemoteAnimationTargetCompat[] apps) {
         Utilities.postAsyncCallback(MAIN_EXECUTOR.getHandler(), () -> {
             for (RecentsAnimationListener listener : getListeners()) {
-                listener.onTaskAppeared(app);
+                listener.onTasksAppeared(apps);
             }
         });
     }
@@ -177,6 +177,6 @@ public class RecentsAnimationCallbacks implements
         /**
          * Callback made when a task started from the recents is ready for an app transition.
          */
-        default void onTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {}
+        default void onTasksAppeared(RemoteAnimationTargetCompat[] appearedTaskTarget) {}
     }
 }
diff --git a/quickstep/src/com/android/quickstep/RemoteTargetGluer.java b/quickstep/src/com/android/quickstep/RemoteTargetGluer.java
index 0871a6d150..b031c4744b 100644
--- a/quickstep/src/com/android/quickstep/RemoteTargetGluer.java
+++ b/quickstep/src/com/android/quickstep/RemoteTargetGluer.java
@@ -85,13 +85,21 @@ public class RemoteTargetGluer {
 
     /**
      * Similar to {@link #assignTargets(RemoteAnimationTargets)}, except this matches the
-     * apps in targets.apps to that of the split screened tasks. If split screen is active, then
-     * {@link #mRemoteTargetHandles} index 0 will be the left/top task, index one right/bottom
+     * apps in targets.apps to that of the _active_ split screened tasks.
+     * See {@link #assignTargetsForSplitScreen(RemoteAnimationTargets, int[])}
      */
     public RemoteTargetHandle[] assignTargetsForSplitScreen(RemoteAnimationTargets targets) {
         int[] splitIds = LauncherSplitScreenListener.INSTANCE.getNoCreate()
                 .getRunningSplitTaskIds();
+        return assignTargetsForSplitScreen(targets, splitIds);
+    }
 
+    /**
+     * Assigns the provided splitIDs to the {@link #mRemoteTargetHandles}, with index 0 will beint
+     * the left/top task, index 1 right/bottom
+     */
+    public RemoteTargetHandle[] assignTargetsForSplitScreen(RemoteAnimationTargets targets,
+            int[] splitIds) {
         RemoteAnimationTargetCompat primaryTaskTarget;
         RemoteAnimationTargetCompat secondaryTaskTarget;
         if (mRemoteTargetHandles.length == 1) {
diff --git a/quickstep/src/com/android/quickstep/TaskAnimationManager.java b/quickstep/src/com/android/quickstep/TaskAnimationManager.java
index ed7f0b3999..e69330ab22 100644
--- a/quickstep/src/com/android/quickstep/TaskAnimationManager.java
+++ b/quickstep/src/com/android/quickstep/TaskAnimationManager.java
@@ -147,16 +147,16 @@ public class TaskAnimationManager implements RecentsAnimationCallbacks.RecentsAn
             }
 
             @Override
-            public void onTaskAppeared(RemoteAnimationTargetCompat appearedTaskTarget) {
+            public void onTasksAppeared(RemoteAnimationTargetCompat[] appearedTaskTargets) {
+                RemoteAnimationTargetCompat appearedTaskTarget = appearedTaskTargets[0];
                 BaseActivityInterface activityInterface = mLastGestureState.getActivityInterface();
                 if (ENABLE_QUICKSTEP_LIVE_TILE.get() && activityInterface.isInLiveTileMode()
                         && activityInterface.getCreatedActivity() != null) {
                     RecentsView recentsView =
                             activityInterface.getCreatedActivity().getOverviewPanel();
                     if (recentsView != null) {
-                        RemoteAnimationTargetCompat[] apps = new RemoteAnimationTargetCompat[1];
-                        apps[0] = appearedTaskTarget;
-                        recentsView.launchSideTaskInLiveTileMode(appearedTaskTarget.taskId, apps,
+                        recentsView.launchSideTaskInLiveTileMode(appearedTaskTarget.taskId,
+                                appearedTaskTargets,
                                 new RemoteAnimationTargetCompat[0] /* wallpaper */,
                                 new RemoteAnimationTargetCompat[0] /* nonApps */);
                         return;
diff --git a/quickstep/src/com/android/quickstep/TaskViewUtils.java b/quickstep/src/com/android/quickstep/TaskViewUtils.java
index 15729e11fb..67a94cc9d0 100644
--- a/quickstep/src/com/android/quickstep/TaskViewUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskViewUtils.java
@@ -177,8 +177,8 @@ public final class TaskViewUtils {
         } else {
             RemoteTargetGluer gluer = new RemoteTargetGluer(v.getContext(),
                     recentsView.getSizeStrategy(), targets);
-            if (recentsViewHandles != null && recentsViewHandles.length > 1) {
-                remoteTargetHandles = gluer.assignTargetsForSplitScreen(targets);
+            if (v.containsMultipleTasks()) {
+                remoteTargetHandles = gluer.assignTargetsForSplitScreen(targets, v.getTaskIds());
             } else {
                 remoteTargetHandles = gluer.assignTargets(targets);
             }
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
index 4c300ec17a..e1afa97f6f 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
@@ -56,6 +56,7 @@ public class SplitSelectStateController {
     private Task mInitialTask;
     private Task mSecondTask;
     private Rect mInitialBounds;
+    private boolean mRecentsAnimationRunning;
 
     public SplitSelectStateController(Handler handler, SystemUiProxy systemUiProxy) {
         mHandler = handler;
@@ -113,6 +114,10 @@ public class SplitSelectStateController {
         return mStagePosition;
     }
 
+    public void setRecentsAnimationRunning(boolean running) {
+        this.mRecentsAnimationRunning = running;
+    }
+
     /**
      * Requires Shell Transitions
      */
@@ -172,7 +177,9 @@ public class SplitSelectStateController {
         public void onAnimationCancelled() {
             postAsyncCallback(mHandler, () -> {
                 if (mSuccessCallback != null) {
-                    mSuccessCallback.accept(false);
+                    // Launching legacy tasks while recents animation is running will always cause
+                    // onAnimationCancelled to be called (should be fixed w/ shell transitions?)
+                    mSuccessCallback.accept(mRecentsAnimationRunning);
                 }
                 resetState();
             });
@@ -187,6 +194,7 @@ public class SplitSelectStateController {
         mSecondTask = null;
         mStagePosition = SplitConfigurationOptions.STAGE_POSITION_UNDEFINED;
         mInitialBounds = null;
+        mRecentsAnimationRunning = false;
     }
 
     /**
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 8566720702..1d01b7a564 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -1874,6 +1874,7 @@ public abstract class RecentsView<ACTIVITY_TYPE extends StatefulActivity<STATE_T
             remoteTargetHandle.getTransformParams().setTargetSet(null);
             remoteTargetHandle.getTaskViewSimulator().setDrawsBelowRecents(true);
         });
+        mSplitSelectStateController.resetState();
 
         // These are relatively expensive and don't need to be done this frame (RecentsView isn't
         // visible anyway), so defer by a frame to get off the critical path, e.g. app to home.
@@ -4333,6 +4334,7 @@ public abstract class RecentsView<ACTIVITY_TYPE extends StatefulActivity<STATE_T
     public void setRecentsAnimationTargets(RecentsAnimationController recentsAnimationController,
             RecentsAnimationTargets recentsAnimationTargets) {
         mRecentsAnimationController = recentsAnimationController;
+        mSplitSelectStateController.setRecentsAnimationRunning(true);
         if (recentsAnimationTargets == null || recentsAnimationTargets.apps.length == 0) {
             return;
         }
@@ -4432,6 +4434,7 @@ public abstract class RecentsView<ACTIVITY_TYPE extends StatefulActivity<STATE_T
         // taps on QSB (3) user goes back to Overview and launch the most recent task.
         setCurrentTask(-1);
         mRecentsAnimationController = null;
+        mSplitSelectStateController.setRecentsAnimationRunning(false);
         executeSideTaskLaunchCallback();
     }
 
diff --git a/quickstep/src/com/android/quickstep/views/TaskView.java b/quickstep/src/com/android/quickstep/views/TaskView.java
index d114aedb89..2be3160c9f 100644
--- a/quickstep/src/com/android/quickstep/views/TaskView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskView.java
@@ -558,6 +558,10 @@ public class TaskView extends FrameLayout implements Reusable {
         return mTaskIdContainer;
     }
 
+    public boolean containsMultipleTasks() {
+        return mTaskIdContainer[1] != -1;
+    }
+
     public TaskThumbnailView getThumbnail() {
         return mSnapshotView;
     }