StoreKitTest rereceipt is not valid error

Testing on iPadPro simulator, when I try to purchase I see native alert of Apple which shows successful purchase but purchase function handler returns error below. I didn’t set  .with(usesStoreKit2IfAvailable: true) 
 
SDK:RevenueCat (4.22.0)

  Purchases.shared.purchase(package:selectedPackage) { transaction, purchaseInfo, error, userCancelled in
[Purchases] - ERROR: 💰 Product purchase for '1_Credit' failed with error: Error Domain=RevenueCat.ErrorCode Code=8 "The receipt is not valid." UserInfo={source_function=parseUnsuccessfulResponse(), readable_error_code=INVALID_RECEIPT, rc_response_status_code=400, source_file=RevenueCat/HTTPClient.swift:528, NSLocalizedDescription=The receipt is not valid., rc_backend_error_code=7103, NSUnderlyingError=0x6000031e1fe0 {Error Domain=RevenueCat.BackendErrorCode Code=7103 "The receipt is not valid." UserInfo={NSLocalizedDescription=The receipt is not valid., rc_backend_error_code=7103}}}