Why are changes made on form not showing when published?

I believe I have it set properly to have my header font colors white and they show white while in build mode but then the header font colors are black in preview mode except for the first one which is white.

I have checked on your form both design view and published view and they seem to be ok

Design View

Published View

I would recommend you clear your browser cache and check if the updates reflect on your browser. Alternatively you can view using a different browser after clearing browser cache.

The first one is ok like the one showed in the picture above but the headers after that have black font and not white. All the letters in all headers need to be white

I was able to replicate the issue. Please try injecting this custom CSS code:

.form-header-group .form-header {
color: #ffffff;
}

Here's a guide on How-to-Inject-Custom-CSS-Codes. Here's the result:

Hope that helps. Thank you.

@Shaun Mason

We will be addressing your issue on this thread: https://www.jotform.com/answers/1364388

Thank you.