New Form – Cannot Save or Add New Fields

I have many older Fast Secure Contact forms on my website. They all still work great.

However, today I tried to add a new form to my website. It’s been very buggy! When I try to add a new form field, it will not let me save. When I try to make advanced changes to the CSS, it will not let me save. It goes back to the original settings, no matter how many times I try to make an update and in any browser.

Now, the captcha has also disappeared.

I’ve tried clearing the cache & nothing works. I don’t know if it’s an issue with the latest update, but I’ve never had problems until now.