I am now getting the login in button on an embedded site for all of the browsers (Firefox, Edge, Chrome)
Hi there,
Thank you for reaching out here and sharing!
Based on our records, there have been no recent changes at Knack that would result in the appearance of a login button on an embedded site across all browsers.
To address this issue and help provide you a solution, we kindly request that you get in touch with our support team and share further details, and they will be happy to help you and investigate this issue to find the cause. You can reach out to them via the chat widget in the Builder or by submitting this form.
We look forward to helping you resolve this issue! 
I had my setting set to cookie instead of token, and I always had the normal login form, but for some reason today any browser I tried loaded the form with just a login button. I switched it a few moments ago to token and it corrected the issue. What’s weird is with the option “cookie” selected, the form worked fine for years, but today the form loaded differently.