A family of Microsoft word processing software products for creating web, email, and print documents.
So, after struggling with this problem for hours last night and restarting multiple times, shutting off my PC for the night seems to have done the trick. A cold boot, and everything's back to normal. I tested multiple docs, ones I worked on last night as well as others, and the issue seems to have resolved itself. If it happens again, I'll be back! Thank you.