Landing page not updating with new form

Wondering if anyone has run into this lately - I've created a Forms 2.0 and a marketo landing page as usual, with a link to download a pdf. All looks well, but the landing page isn't updating to include the new thank you page/link download. I have unapproved and re-approved several times, refreshed, re-loaded, deleted the html and re-embedded.. I've checked my Wordpress page to make sure i've included the correct Marketo Landing Page URL... I'm out of ideas as to why this wouldn't work.  Shouldn't take this long for Marketo to sync and include the new form/landing page.. ??