Since your previous post I have been exploring these areas myself.
Lots of mucking around and by pure happenstance I downloaded:
https://support.microsoft.com/en-gb...ion-21h1-ce978a46-1f38-4a76-9a64-970480e8362e
Which wonder of wonders seems to have fixed the problem.
Note this is dated November 9 - just a day or so ago.
This is in line with Erel's earlier suggestion at post #4 - maybe he was just early - or looking into his crystal ball.?