Getting stuck on Verify Your Order page

Try enabling the billing state field on your checkout page.

Thank you for the response! I tried doing that, but now get the error to select a valid state, even though I have. Any ideas? I looked to see if I was limited to a specific geographic range, but the only option was USA, which is allowed as a region.

Move the checkout COuntry field above the state field in the Checkout page settings in the admin.
Few people reported that as a fix.

Unfortunately, no, still not working: https://gbmcoffee.com/store/checkout/. If it reveals anything, after looping back to the page, the “Country” selector goes back to blank and the state is written in in text (rather than the selected state from the selector).

OK, it’s definitely an issue with shipping. When I disable shipping (making shipping free) the problem goes away. I’m having the same problem on this site: https://flamencoorganic.com/products/. In the same way, when I disable the shipping module, it goes through fine.