Windows 10: window hello face stopped working

I have surface laptop 3, Initially the window hello face was working fine but once I updated my laptop it stopped working.

:)

 

Windows Hello Face stopped working

After installing Windows 10 1909 Update KB4551762 and restarting my M/S Surface Book 2 the Windows Hello Face login would not work. I logged on with my PIN, went to settings/accounts to check my Hello/Face Sign In. Message advises that Windows could not find a camera compatible with Windows Hello Face. Prior to the Update Windows Hello Face was working. Would appreciate any feedback on how to resolve this issue

 

windows hello face problem...

List of Windows Hello supported Dell Laptops:

 

Windows Hello Face Stopped Working

I bought the surface laptop 3 back in November and hello face was working great. Then one day in February when I open my laptop, it asked for my pin and the the hello face option was no longer listed. In the settings for Hello Face, I get a message saying
"This option is currently unavailable - click to learn more." and directly below that it says "Something went wrong. Try again later." The options for improve recognition and remove are both grayed out. I've reached out via DM and phone call to Microsoft and
the technician told me it was a recent Windows update that caused the issue. I was told to reinstall windows, which I did and it would fix the problem for a couple of startups on the same day and eventually stops working again. I've reinstalled windows twice
now and it'll still the same issue. Is anyone else experiencing this as well?