I have just tried this, but unfortunately it still isn't working. I believe this is something that can only be fixed with the Google Pay team and the OS Development team at Samsung, so hopefully a mod sees this and passes it on
Its not a proper full release yet since it hasn't been released to the general public. This "full release" isn't certified and Netflix won't install and my other apps still give me a certification error. I assume there will be another update in the coming days for the final general public release