245 Music not recording steps correctly after SW3.0 update.

I received the 3.0 update a couple of days ago. It seemed to install OK, but since then I have noticed that if I track an activity (run, walk etc) the Step Counter Widget seems to reset and then starts again from the start of that activity. For example today I had done around 7,000 steps through the day and then did an hour at the track. After saving the activity when I was finished, the Widget only showed the steps for the run. 

However the Connect website syncs and shows the correct step count and feeds into the Connect Mobile App, but the watch never catches up.

I have done Factory reset but still happens.

Any ideas?