Working on a computer that the end-user is using the Word 365 desktop client app. In the event that he has a document that he has track changes and comments on said document and keeps Show Comments on when he prints, it will print in landscape mode no matter what. If I Show Comments is turned off, it will print in portrait mode and be just fine. This is to any printer including the MS PDF printer and Adobe PDF printer. If I take the same doc and open it on another computer, any computer, it will print in portrait mode just fine.
I have run the quick repair and the full repair which didn't fix the issue. What else could be causing this? I really don't want to completely uninstall Office 365 from his computer and reinstall it but if that is the only next step, then I have no choice but I am hoping to find something here.

