diff --git a/WordPress/src/main/java/org/wordpress/android/ui/posts/EditPostActivity.java b/WordPress/src/main/java/org/wordpress/android/ui/posts/EditPostActivity.java
index a6884db857a..45365d285a2 100644
--- a/WordPress/src/main/java/org/wordpress/android/ui/posts/EditPostActivity.java
+++ b/WordPress/src/main/java/org/wordpress/android/ui/posts/EditPostActivity.java
@@ -9,6 +9,7 @@ import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
+import android.os.Parcel;
 import android.text.TextUtils;
 import android.view.DragEvent;
 import android.view.Menu;
@@ -51,6 +52,7 @@ import com.google.android.material.snackbar.Snackbar;
 import org.greenrobot.eventbus.EventBus;
 import org.greenrobot.eventbus.Subscribe;
 import org.greenrobot.eventbus.ThreadMode;
+import org.jetbrains.annotations.NotNull;
 import org.wordpress.android.BuildConfig;
 import org.wordpress.android.R;
 import org.wordpress.android.WordPress;
@@ -1156,9 +1158,29 @@ public class EditPostActivity extends LocaleAwareActivity implements
         }
     }
 
+    private Boolean isTooLargeBundle(@NotNull Bundle bundle) {
+        Parcel parcel = Parcel.obtain();
+        int size;
+        parcel.writeBundle(bundle);
+        size = parcel.dataSize();
+        int maximumParcelSize = 10 * 1024; // limit to 500 KB
+        parcel.recycle();
+        AppLog.i(T.EDITOR, "Bundle size: " + size + " bytes");
+        return size > maximumParcelSize;
+    }
+
     @Override
-    protected void onSaveInstanceState(Bundle outState) {
+    protected void onSaveInstanceState(@NonNull Bundle outState) {
         super.onSaveInstanceState(outState);
+        if (isTooLargeBundle(outState)) {
+            // Don't save view state when the instance state is too large
+            // to avoid when the state is too large to avoid a TransactionTooLargeException
+            // see: https://github.com/wordpress-mobile/WordPress-Android/issues/9685
+            // and: https://github.com/facebook/react-native/issues/19458
+            outState.remove("android:viewHierarchyState");
+            outState.remove("androidx.lifecycle.BundlableSavedStateRegistry.key");
+            AppLog.e(T.EDITOR, "Dumping view hierarchy state to avoid TransactionTooLargeException");
+        }
         // Saves both post objects so we can restore them in onCreate()
         updateAndSavePostAsync();
         outState.putInt(STATE_KEY_POST_LOCAL_ID, mEditPostRepository.getId());