Workouts not syncing properly to Phone from Watch

[Miaappl]

I have Watch Series 5 and use it every day to do various types of workouts. Have been doing it for years with every prior version of Watch. phone is X with IOS 13. Since day I got new Watch there have been problems with workouts not syncing properly to Activity or Heath Apps. For most workouts, the Activity App will not show average heart rate or the heart rate chart, yet if I open heart rate in Heath App and look at all data, I see heart rate data for the time the workout was occurring. Several workouts failed to sync at all to the Activity App and simply never show up. My wife has iPhone 11 Pro but S4 Watch updated To Watch OS6.01 and has similar problem, so it has to be software related, not hardware. Has anyone else encountered this issue and found a cure?