That's an interesting one! I haven't seen any other reports of this yet, but did it just start today? If you have a reliable way to reproduce it, I'd love the steps so I can confirm on my end. In either case, next time you see it please report via Edge's "…" menu in the top right > Help and feedback > Send feedback, check the box to include diagnostic data and detail what you are seeing and if any specific action triggered it.
Thanks!