I created a new landing page via Instapage however, the hidden fields are not being passed back from the instapage form to Hubspot. I'm able to see other lead form info but the hidden field info such as the "Reached out via" (which is the source), Language etc aren't being tracked.
This seems to be a one off case since other landing pages via instapage dont seem to have this issue. However, Im not able to resolve this despite multiple attempts. Kindly assist.