Editable files in pdf are missing after saving in illustrator 2023 or higher

We have a customer that requires a editable pdf for some header information.  Our current way of creating this pdf, was to open the pdf with the form fields in illustrator add the artwork, save the pdf out of illustrator and then reopen the pdf in acrobat to fill out the form.  We could do this with illustrator 2022.  Now with 2023 and higher this is no longer possible. The forms are removed and cannont be filled out.  Is there a way to make this work again, or a different method I can try?