Guest Checkout has no ground shipping option

I’m having an issue where the FedEx Ground Shipping is not showing up for people who are trying to checkout as guests. The ground shipping shows up if you login to an account before checking out. I have tried all the different options for the “user group” on the shipping method but even if all or guest are checked it is not showing. The cart is running on 2.2.1 but in trying to solve the problem, I have updated the templates under /views/checkout/components/ to the latest changes in 2.2.4. Any ideas on what could be causing the ground shipping method not to show for guests? The other two shipping methods that are setup are showing up fine. Thanks