What you have described here is very unusual behavior that I have never seen or have reported before. I would like to get a feel for exactly what you are experiencing and if I cannot resolve the issue quickly I will open a ticket for you.
Please post back with a copy of the page that has the form on it, the CSSFormBuilder folder from your site and an export of the saved form preset that you are using. Along with this please also explain what parts this form should have when it is complete so that I can tell if anything is missing. I will test this out to see what result I get with it.
