Heart rate chart unavailable
Apple Watch workout app has been working fine until the last week, no all my 5km runs have an average heart rate but no heart rate chart. All it shows is “Chart Unavailable”, which appears to be because it’s not able to take my heart rate. I wear it tighter for running and am doing the exact same route as when it was working, I have no tattoos and there’s no above average amounts of sweat. Any ideas?