A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
The problem persists when trying to convert to PDF inside an Excel document, but I have found a workaround until the problem is fixed. Thing is, you would need a subscription to Adobe Acrobat DC Pro or otherwise have the ability to create a PDF.
So from Adobe Acrobat, you would choose File->Create->PDF From File. Browse to your Excel file, and it will convert to PDF correctly that way.
I hope this helps anyone else who is having this issue.