diff --git a/core/proto/android/server/windowmanagerservice.proto b/core/proto/android/server/windowmanagerservice.proto
index a8d0825b673f8..ee371c17bb788 100644
--- a/core/proto/android/server/windowmanagerservice.proto
+++ b/core/proto/android/server/windowmanagerservice.proto
@@ -220,6 +220,7 @@ message StackProto {
   optional float adjust_ime_amount = 10;
   optional float adjust_divider_amount = 11;
   optional .android.graphics.RectProto adjusted_bounds = 12;
+  optional bool animating_bounds = 13;
 }
 
 /* represents Task */
diff --git a/services/core/java/com/android/server/wm/AppWindowToken.java b/services/core/java/com/android/server/wm/AppWindowToken.java
index 9a4db655a0faf..5676f588fa249 100644
--- a/services/core/java/com/android/server/wm/AppWindowToken.java
+++ b/services/core/java/com/android/server/wm/AppWindowToken.java
@@ -1312,7 +1312,8 @@ class AppWindowToken extends WindowToken implements WindowManagerService.AppFree
         if (prevWinMode != WINDOWING_MODE_UNDEFINED && winMode == WINDOWING_MODE_PINNED) {
             // Entering PiP from fullscreen, reset the snap fraction
             mDisplayContent.mPinnedStackControllerLocked.resetReentrySnapFraction(this);
-        } else if (prevWinMode == WINDOWING_MODE_PINNED && winMode != WINDOWING_MODE_UNDEFINED) {
+        } else if (prevWinMode == WINDOWING_MODE_PINNED && winMode != WINDOWING_MODE_UNDEFINED
+                && !isHidden()) {
             // Leaving PiP to fullscreen, save the snap fraction based on the pre-animation bounds
             // for the next re-entry into PiP (assuming the activity is not hidden or destroyed)
             final TaskStack pinnedStack = mDisplayContent.getPinnedStack();
diff --git a/services/core/java/com/android/server/wm/TaskStack.java b/services/core/java/com/android/server/wm/TaskStack.java
index 2175c6be5b5f7..b6ee713fdf05a 100644
--- a/services/core/java/com/android/server/wm/TaskStack.java
+++ b/services/core/java/com/android/server/wm/TaskStack.java
@@ -37,6 +37,7 @@ import static com.android.server.wm.StackProto.ADJUSTED_BOUNDS;
 import static com.android.server.wm.StackProto.ADJUSTED_FOR_IME;
 import static com.android.server.wm.StackProto.ADJUST_DIVIDER_AMOUNT;
 import static com.android.server.wm.StackProto.ADJUST_IME_AMOUNT;
+import static com.android.server.wm.StackProto.ANIMATING_BOUNDS;
 import static com.android.server.wm.StackProto.ANIMATION_BACKGROUND_SURFACE_IS_DIMMING;
 import static com.android.server.wm.StackProto.BOUNDS;
 import static com.android.server.wm.StackProto.DEFER_REMOVAL;
@@ -1363,6 +1364,7 @@ public class TaskStack extends WindowContainer<Task> implements
         proto.write(ADJUST_IME_AMOUNT, mAdjustImeAmount);
         proto.write(ADJUST_DIVIDER_AMOUNT, mAdjustDividerAmount);
         mAdjustedBounds.writeToProto(proto, ADJUSTED_BOUNDS);
+        proto.write(ANIMATING_BOUNDS, mBoundsAnimating);
         proto.end(token);
     }