Issue with citations when converting word document into pdf

I am running Endnote X9 on MAC OS Catalina (10.15.1) using Microsoft Word for MAC (v16.35). My issue is not a huge one, rather a subtly annoying one. In my word document, my in-text citations are properly formatted as superscript numbers using the ACS output style. When I convert the word document into a pdf, these in-text citations go from being in superscript into subscript for no apparent reason. I have no idea how to fix this. Has anyone experienced this before/know how to address the issue? Any help would be greatly appreciated. 

Please don’t post the same problem to two different forum channels. Answered the otherone. Wish there was just one freaking channel. 

I Have the same issue. Do you get any solution for it so for! Waiting for answer please