Some of my steps not registered missing and 2 runs reflect but the steps show zero. Why

My Day and step count erratic

Could tou specify what exactly it means?

Does not reflect the number of steps on 14 May 2020

Again, some data, numbers, or screenshots would be helpful to better understand what you mean

Also does not reflect steps for earlier today 15 Mays including from my morning run.

Ditto, pease post a screenshot of the daily steps stats, share a link to the Activity, and if possible send a photo of the steps widget on the watch

My steps Widget is enabled 

My steps Widget is enabled 

Nice. And what numbers does it show for the 14th and 15th? (you may need to press the enter button to get the values of last 7 days).

See snapshot for the last seven days. It shows Zero for 14th all day although I walked a lot throughout the day and evening plus ran 10km in the morning. And it did not record the steps for the morning of the 15th which were from 9.2km run and general walking cooling down - for a 10km run I usually log about +/- 12000 to 15000 steps , with same level of walking I did on the day this would have gone to 20k to 22k that day.

I am actually missing about 30 to 35k of steps for these  2 days. As you can see on the 15th it only recorded the evening walk steps nut not the 9.2km run.

Yes, I understood that, but I meant what does your watch show on the step widget for those days?

Nothing 

What exactly you mean by "nothing"? Could you post a photo of the nothing? You mean zeros for both days, the 14th and the 15th too?

Yes actually, it showed zero steps for all day on the 14th. On the 15 it also did not consider steps from my morning activities only from later in a day after i switched off the watch and unpaired it then switched it on and paired it again to the app.

Look at this snapshot, there is nothing for the 14th