Hi,
Reporting a possible bug on swift.
Currently the checkout templates are passing the following fields for checkout users - EcomOrderDeliveryState and EcomOrderCustomerState.
Having these fields passed is causing the user not to see some delivery methods because the region is not being passed. (example - selecting "same as billing address" )
Changing the field names to EcomOrderDeliveryRegion and EcomOrderCustomerRegion fixes this