A family of Microsoft word processing software products for creating web, email, and print documents.
I'm relieved to hear at least that I'm not losing my mind! I am a freelance editor and have been having the exact same infuriating problem. I have to un-do my last edit to get back to where I was, then switch to 'all mark-up' view, where it doesn't happen. It's as if MS is forcing us to edit only in all mark-up view! It happens at random places, but I think always at the end of a para, and on most of the manuscripts on which I've worked, at least for a while now (it's hard to gauge when it started because at first I thought I was doing something to cause it, so didn't keep track).
But it just happened yet again, and it's on my last nerve, so I came looking for a solution. It's incredibly annoying and time-consuming, and throws me off every time, and I need to know how to fix it!
I have a laptop that's about 4 months old, Windows 10 Home and Office 2019.