I have a similar problem with text frames that contain tables and anchored objects. I have to change the width of the text frame and then change it back.
It doesn't get fixed by redrawing the screen.
It's frightening and I worry it's going to affect the printing of the job.
So we IDML'ed the file and it seems to be behaving normally right now. I will post if more problems come up.
That can be a fix. Unfortunately when I convert to IDML and then back, styles, guides, frames, and other things go haywire in my new file. I know that's not supposed to happen, but it does.
I suspect it has to do with the very complicated and tricky things I have applied to the text and elements.
So more things went wrong with this file like the pasteboard is no longer visible. It seems like it's corrupt. I was chatting with Adobe help for over two hours yesterday and got nowhere. Frustrating!