Payment methods are:
- PayPal (default_pp_standart)
- Square (square)
- Cheque/Money Order (default_cheque)
PayPal and Cheque/Money Order respond appropriately now that I have turned Guest Checkout ON as previous suggested. Square brings you back to the home page instead of processing the card.
In addition, for all payment types, coupon codes are not being applied to the order and the tax rate is not changing (for example I only charge tax in New York State, if customer is New Jersey there should be no tax, but tax is not removed).
I have had to turn off the Fast Check out extension because it is not reliable.