Hidden field is not recorded when embed a form into Notion

Hi,

I build a form with one hidden field and intergrate it with a Notion database. It works well when i test on direct link (results for hidden field are all record and show both in Notion database and in result tab in Typeform). But the problem is when I embed this typeform link to Notion page, the hidden field is not recorded anymore. Is there anyway I can fix this?

Thank you so much