Deferred deep link doesnt work with Facebook ads (live or demo), but works when testing with App Ads Helper tool

Question

I'm using Flutter Sdk and have integrated the necessary code to receive Facebook Deferred deep link.

using below pluging for receiving app links

flutter_facebook_app_links: ^3.0.0+5

my deferred deep link

example://prod/https://example.com/pages/landing-48?ad=74

 Future<String?> initFBDeferredDeeplinks() async {
    String? deepLinkUrl;
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      deepLinkUrl = await FlutterFacebookAppLinks.initFBLinks();
      if (Platform.isIOS) {
        deepLinkUrl = await FlutterFacebookAppLinks.getDeepLink();
      }

      if (deepLinkUrl != null && deepLinkUrl.isNotEmpty) {
        if (kDebugMode) {
          print("initFBDeferredDeeplinks $deepLinkUrl");
        }

      
        if (deepLinkUrl.contains("example://prod/")) {
          return deepLinkUrl.split("example://prod/").last;
        } 
        return deepLinkUrl;
      } else {
        return null;
      }
    } catch (e) {
      if (kDebugMode) {
        print(e);
      }
      return null;

      /// in case of error...
    }
  }

The Deferred deeplink i send from App Ads Helper tool works but the Facebook ad doesnt return the deferred deeplink.

I just receive the Install referrer data with no deferred deep link url.

flutter doctor

[✓] Flutter (Channel stable, 3.7.7, on macOS 13.3.1 22E261 darwin-x64, locale en-GB)
[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0-rc1)
[✓] Xcode - develop for iOS and macOS (Xcode 14.1)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2021.3)
[✓] VS Code (version 1.77.3)
[✓] Connected device (3 available)
[✓] HTTP Host Availability

• No issues found!

Expected the same response in live ad as the App Ads helper tool