Workout Duration Syncing Problem

Hi,

I’m wearing my apple watch 4 everyday and using workout app all the time. Recently workout app duration started acting up. Yesterday I walked 1:44:43 but in fitness app it’s only 88 mins. Today I walked 59 mins and in fitness app only 9 mins :)) There are many other inconsistent data like this in the past few months. I’ve tried many tricks available on the internet as well as delete and setup again as a new watch. However the result is the same. Any suggestions that I might need to reconsider ?? Thanks in advance..

Cheers

Bora