Yesterday I had a problem with 2 form submit buttons which I fixed with two tabs. Today I realized that form submit buttons don’t work 
I have no idea what could be causing it, probably something to do with multiple forms because it worked yesterday with only one form.
As you can see, nothing happens once you fill the form and click on button: ViralVerse - Monthly Subscription
Here is my site Read-Only: Webflow - ViralVerse
Okay, this is awkward sorry for spamming… The solution was: I had a check field that was required, but HIDE option was set to NONE so form was trying to get me to check that field but it was hidden… After deleting it, now it works perfectly.
Thanks for posting this, I had the exact same issue. I do wish I could have required buttons for one submit button and then when that form is hidden, have the other submit button work for just the fields it is used for to collect information. I can’t create two forms because I distributed the form fields across a grid, and it’s not possible to nest forms.
Thanks Mislav. Probably saved me a bunch of time with this!