Added new environment and DNS, now form submissions don't work in production

Form submissions have been working fine for the staging environment for weeks. When the site went live this morning, no form submission are working. When the form is submitted, in the developer console I see a 404 for the post going to custom domain).

I do not see an entry for a form on the netlify forms section.

Hi, @evantedesco. I do show there is a working form for that site currently. If the forms still are not working, the initial debugging process is detailed here:

If it still isn’t working, please let us know what you have tried and we will be happy to take a closer look.