diff --git a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
index 3e52f5e07e62e..5b7f5c85c1bb9 100644
--- a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
+++ b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
@@ -2837,7 +2837,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
                 return;
             }
             final IBinder targetWindow = mImeTargetWindowMap.get(startInputToken);
-            if (targetWindow != null && mLastImeTargetWindow != targetWindow) {
+            if (targetWindow != null) {
                 mWindowManagerInternal.updateInputMethodTargetWindow(token, targetWindow);
             }
             mLastImeTargetWindow = targetWindow;
diff --git a/services/core/java/com/android/server/wm/ActivityRecord.java b/services/core/java/com/android/server/wm/ActivityRecord.java
index b52e527b0556e..4520579e030ad 100644
--- a/services/core/java/com/android/server/wm/ActivityRecord.java
+++ b/services/core/java/com/android/server/wm/ActivityRecord.java
@@ -1038,6 +1038,8 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A
                 pw.print(" forceNewConfig="); pw.println(forceNewConfig);
         pw.print(prefix); pw.print("mActivityType=");
                 pw.println(activityTypeToString(getActivityType()));
+        pw.print(prefix); pw.print("mImeInsetsFrozenUntilStartInput=");
+                pw.println(mImeInsetsFrozenUntilStartInput);
         if (requestedVrComponent != null) {
             pw.print(prefix);
             pw.print("requestedVrComponent=");
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 9335846e7805b..bb8d6ef8fb126 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -3969,11 +3969,11 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp
      * which controls the visibility and animation of the input method window.
      */
     void updateImeInputAndControlTarget(WindowState target) {
+        if (target != null && target.mActivityRecord != null) {
+            target.mActivityRecord.mImeInsetsFrozenUntilStartInput = false;
+        }
         if (mImeInputTarget != target) {
             ProtoLog.i(WM_DEBUG_IME, "setInputMethodInputTarget %s", target);
-            if (target != null && target.mActivityRecord != null) {
-                target.mActivityRecord.mImeInsetsFrozenUntilStartInput = false;
-            }
             setImeInputTarget(target);
             updateImeControlTarget();
         }
diff --git a/services/tests/wmtests/src/com/android/server/wm/ActivityRecordTests.java b/services/tests/wmtests/src/com/android/server/wm/ActivityRecordTests.java
index 6f04f176afd86..29fa2d3793791 100644
--- a/services/tests/wmtests/src/com/android/server/wm/ActivityRecordTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/ActivityRecordTests.java
@@ -37,6 +37,7 @@ import static android.content.res.Configuration.ORIENTATION_LANDSCAPE;
 import static android.content.res.Configuration.ORIENTATION_PORTRAIT;
 import static android.os.Process.NOBODY_UID;
 import static android.view.Display.DEFAULT_DISPLAY;
+import static android.view.InsetsState.ITYPE_IME;
 import static android.view.WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW;
 import static android.view.WindowManager.LayoutParams.FIRST_SUB_WINDOW;
 import static android.view.WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;
@@ -127,6 +128,8 @@ import android.view.IRemoteAnimationFinishedCallback;
 import android.view.IRemoteAnimationRunner.Stub;
 import android.view.IWindowManager;
 import android.view.IWindowSession;
+import android.view.InsetsSource;
+import android.view.InsetsState;
 import android.view.RemoteAnimationAdapter;
 import android.view.RemoteAnimationTarget;
 import android.view.Surface;
@@ -2884,6 +2887,41 @@ public class ActivityRecordTests extends WindowTestsBase {
         assertFalse(app.mActivityRecord.mImeInsetsFrozenUntilStartInput);
     }
 
+    @UseTestDisplay(addWindows = W_INPUT_METHOD)
+    @Test
+    public void testImeInsetsFrozenFlag_resetWhenReportedToBeImeInputTarget() {
+        final WindowState app = createWindow(null, TYPE_APPLICATION, "app");
+
+        InsetsSource imeSource = new InsetsSource(ITYPE_IME);
+        app.getInsetsState().addSource(imeSource);
+        mDisplayContent.setImeLayeringTarget(app);
+        mDisplayContent.updateImeInputAndControlTarget(app);
+
+        InsetsState state = mDisplayContent.getInsetsPolicy().getInsetsForWindow(app);
+        assertFalse(state.getSource(ITYPE_IME).isVisible());
+        assertTrue(state.getSource(ITYPE_IME).getFrame().isEmpty());
+
+        // Simulate app is closing and expect IME insets is frozen.
+        mDisplayContent.mOpeningApps.clear();
+        app.mActivityRecord.commitVisibility(false, false);
+        app.mActivityRecord.onWindowsGone();
+        assertTrue(app.mActivityRecord.mImeInsetsFrozenUntilStartInput);
+
+        // Simulate app re-start input or turning screen off/on then unlocked by un-secure
+        // keyguard to back to the app, expect IME insets is not frozen
+        imeSource.setFrame(new Rect(100, 400, 500, 500));
+        app.getInsetsState().addSource(imeSource);
+        app.getInsetsState().setSourceVisible(ITYPE_IME, true);
+        mDisplayContent.updateImeInputAndControlTarget(app);
+        assertFalse(app.mActivityRecord.mImeInsetsFrozenUntilStartInput);
+
+        // Verify when IME is visible and the app can receive the right IME insets from policy.
+        makeWindowVisibleAndDrawn(app, mImeWindow);
+        state = mDisplayContent.getInsetsPolicy().getInsetsForWindow(app);
+        assertTrue(state.getSource(ITYPE_IME).isVisible());
+        assertEquals(state.getSource(ITYPE_IME).getFrame(), imeSource.getFrame());
+    }
+
     private void assertHasStartingWindow(ActivityRecord atoken) {
         assertNotNull(atoken.mStartingSurface);
         assertNotNull(atoken.mStartingData);