Group ride mileage and elapsed time staying at zero

Have tried 3 group rides since Friday. Each time when the ride starts the elapsed time and mileage at top centre stay at zero. The watts, cadence and speed are all fine and when I do a free ride both these functions work fine. Using Apple TV which is updated to latest version

After 3 failed group rides seems to be fixed now. Unplugged Apple TV from wall for 30 second ( is always switched of at wall when not in use) as requested and tried another ride and it worked!