App icon indicates 1 notification and it will not go away
I have an iPhone 11, and typically when an app has an unread notification, the app will depict a number inside of a red circle atop the icon logo in the Home Screen. Currently, my companion app shows that I have 1 unread notification, yet nothing inside the app indicates such. I cannot get this to clear. This started last Sunday. Since this started, the app has not functioned smoothly.