I think I have a related issue. When trying to save any ACS journal citation, it can't get the PDF at all from the record page. I have tried in Firefox and Chrome. It looks like it's trying to get the "PDF w/ Links" option but I receive the red X that it failed. Do you think this would work if the connector tried to get a different PDF available on the page? See, for example this page: https://pubs.acs.org/doi/10.1021/ac101888f
Thank you!