Thanks for the tips,
I tried them out but sadly still the same issue, the auto-populate of the fields wont work the second time i try to fill up the form and even the link to reset the form wont show up. I can see that the form is loading directly into the DOM after disabling the hubspot styling.
here is the page where the form is embeded: https://redmoneyevents.com/event/uk2023-testing/