diff --git a/packages/react-native/scripts/featureflags/ReactNativeFeatureFlags.config.js b/packages/react-native/scripts/featureflags/ReactNativeFeatureFlags.config.js
index ca1db072363a52..c1e0bf0a8a8fe6 100644
--- a/packages/react-native/scripts/featureflags/ReactNativeFeatureFlags.config.js
+++ b/packages/react-native/scripts/featureflags/ReactNativeFeatureFlags.config.js
@@ -546,11 +546,13 @@ const definitions: FeatureFlagDefinitions = {
       },
     },
     useInsertionEffectsForAnimations: {
-      defaultValue: true,
+      defaultValue: false,
       metadata: {
+        dateAdded: '2024-09-12',
         description:
           'Changes construction of the animation graph to `useInsertionEffect` instead of `useLayoutEffect`.',
-        purpose: 'release',
+        expectedReleaseValue: true,
+        purpose: 'experimentation',
       },
     },
     useRefsForTextInputState: {
diff --git a/packages/react-native/src/private/featureflags/ReactNativeFeatureFlags.js b/packages/react-native/src/private/featureflags/ReactNativeFeatureFlags.js
index 8ca49c8d9094b9..462231ad955681 100644
--- a/packages/react-native/src/private/featureflags/ReactNativeFeatureFlags.js
+++ b/packages/react-native/src/private/featureflags/ReactNativeFeatureFlags.js
@@ -4,7 +4,11 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
+<<<<<<< HEAD
  * @generated SignedSource<<83b5798ee1c7a28fffbf110e19641d69>>
+=======
+ * @generated SignedSource<<3bdec862f75745ce81e9cf23fef82468>>
+>>>>>>> c799aa07e21 (Back out "RN: Enable `useInsertionEffectsForAnimations`" (#48669))
  * @flow strict
  */
 
@@ -170,7 +174,7 @@ export const shouldUseSetNativePropsInFabric: Getter<boolean> = createJavaScript
 /**
  * Changes construction of the animation graph to `useInsertionEffect` instead of `useLayoutEffect`.
  */
-export const useInsertionEffectsForAnimations: Getter<boolean> = createJavaScriptFlagGetter('useInsertionEffectsForAnimations', true);
+export const useInsertionEffectsForAnimations: Getter<boolean> = createJavaScriptFlagGetter('useInsertionEffectsForAnimations', false);
 
 /**
  * Enable a variant of TextInput that moves some state to refs to avoid unnecessary re-renders