Red squiggle lines in middle of Word Doc - Not Spellcheck

[Lakarsen]

Hi All,

I have these weird red squiggle lines in the middle of all pages of my Word document. I have searched other forums and nothing truly matches but I have already tried Accepting All Tracking Changes (no changes found); clearing Header & Footer; and turned off spellcheck, though it is not spelling related. Nothing has worked. It does not appear on printed pages, so I am at a total loss. Realize it's just an annoyance, since it's not "harming" the document but it's making me insane, so any and all help is truly appreciated.

[#2]

@Lakarsen Do the lines appear with all documents, or just one particular document?

If you upload a copy of a document with which you have the issue, we will see it we can find the cause.