CF8 form in module in Quix Page Builder page does not submit

I have created a simple form in CF8 with a submit button which sends an email. This submit with mail works fine when using the preview of the form, but when I insert a CF module with this form in Quix Page Builder, the form is not submitting, just reloading. Also no record is saved to the log table.

Does anyone have a CF8 form in a module working in a page build with Quix Page Builder?

what about a v8 form in a v8 normal module without Quix Page Builder ? does it work on your website ?

Yes, a v8 form in a v8 module without Quix Page Builder is working as expected, so it has to be something with the combination with Quix Page Builder. But not sure what I could be.

v8 uses a normal module to load the form, I do not know how the Quix page builder runs modules, but maybe they can give us a hint where is the problem if you ask them.