diff --git a/services/core/java/com/android/server/wm/ActivityStack.java b/services/core/java/com/android/server/wm/ActivityStack.java
index 580425b4e864c..0e391f0291fe4 100644
--- a/services/core/java/com/android/server/wm/ActivityStack.java
+++ b/services/core/java/com/android/server/wm/ActivityStack.java
@@ -2393,8 +2393,10 @@ class ActivityStack extends Task {
         }
         Task task = null;
         if (!newTask && isOrhasTask) {
+            // Starting activity cannot be occluding activity, otherwise starting window could be
+            // remove immediately without transferring to starting activity.
             final ActivityRecord occludingActivity = getActivity(
-                    (ar) -> !ar.finishing && ar.occludesParent(), true, rTask);
+                    (ar) -> !ar.finishing && ar.occludesParent(), true, r);
             if (occludingActivity != null) {
                 // Here it is!  Now, if this is not yet visible (occluded by another task) to the
                 // user, then just add it without starting; it will get started when the user