Check subscription status show random true or false

Hi, after i buy my subscription, purchaserInfo show sometimes indicates a purchase, sometimes not

With Android Emulator / Flutter

Here is my code to check

 checkPremium() async {
    Purchases.addPurchaserInfoUpdateListener((purchaserInfo) async {
      PurchaserInfo purchaserInfo = await Purchases.getPurchaserInfo();
      (purchaserInfo.entitlements.all["remove_ads"] != null &&
              purchaserInfo.entitlements.all["remove_ads"]!.isActive)
          ? print("Active")
          : print("Not Active");

      setState(() {});
    });
  }