I have an Ultra II. Use it everyday to monitor exercise, etc. In the upper right I have a complication for current heart rate. The upper right quadrant now shows nothing but a blank, but if I touch the blank spot it goes to heart rate app. I moved the current heart rate to lower right and the same thing happens. I tried to change colors, etc. to no avail. In different moves that part of screen displays normaly. It is up to date.