It looks like fix is just updating a source from here:
https://github.com/AuthorizeNet/sdk-dotnet/blob/master/Authorize.NET/Api/Contracts/V1/AnetApiSchema.generated.csto
add GooglePay into the paymentMethodsTypeEnum.
Just post the result of working with our problem. Main issue they ignore
relay url (sent as x_relay_url param) which has *the parentheses* '(',
')' at all when whitelist is empty. No errors, no warnings - just ignore
it and as result updating transac...
https://community.developer.authorize.net/t5/Integration-and-Testing/SIM-x-relay-url-validation/td-p/10260
I refer this dicussion as the issue looks mostly same - but with one
difference: x_relay_url stopped work for us completelly with a week or
so ...