New Magento 2.0.2 install, creating user works fine from main / home page and link, however if the existing user add product to cart and attempt log in to their account upon checkout does not work report error: "Provided form does not exist", see attached screen shots.
Any advise hot that could be fix?
The issue was turned On CAPTCHA, as soon I turned OFF all problems with existing user checkout login disappeared. Everything start to work just fine. So do not turn CAPTCHA for customers ON, not for guest checkout or otherwise.
Most helpful comment
The issue was turned On CAPTCHA, as soon I turned OFF all problems with existing user checkout login disappeared. Everything start to work just fine. So do not turn CAPTCHA for customers ON, not for guest checkout or otherwise.