Huh. I went in to poke at a few things to give some suggestions for you to try - only to see that I’ve got it as well. If this is what you’re talking about? It did disappear right after I moved my cursor over the “I”. And it came back once I closed out the window and reopened it.
I shall poke around and see what I can figure out. Sorry for the rambling and no real answer (as yet), but it appears you’re not alone in this.