I have a one-page form with no validations. Once I've entered all items, I click the Next button, the page loads for a second (bar at the top), and the green Complete button doesn't appear. So there's no way to finish the form.
Thanks posting this. My name is Shiv and I am a Support Analyst at Dimagi support team. As per my understanding, the green Complete button may not appear after clicking the Next button on your one-page form if there are required questions or questions with validation errors that have not been addressed. In such cases, CommCare application will display an error on the affected question. Once all errors are addressed, the Complete button should become enabled.
In case this does not resolve the issue, please feel free reach out with more details such as adding screenshot. I would love to support you further.