@DavidR
@schmidthouse
The VPS have been updated to 191031-8 at version 8! 
Whether it is now the final solution to the problem, we have to wait and see ...
But it is at least pleasing that something is apparently happening.
Have a nice Weekend and thank you for the encouraging words!
Sky
That's good news, only a day behind what I have.
Remember what has been said in relation to the current avast versions and VPS updates, that may not return to daily levels for a while as each has to be thoroughly checked before release. So there may not be one every day, that shouldn't be a problem if version 8 hasn't got streaming updates (which I don't know).
There are also other features behaviour shield and Cyber Capture (which I don't know if are in avast 8, a real problem with old versions) as these don't necessarily rely on regular signature based detection.