Is there a bug in the latest upgrade ?

Hi,

I'm not sure that this is the correct forum, because it is a question, I don't believe it's language specific, else I'd've posted it in vb.NET.

I 'upgraded' to the newest Visual Studio Community 2019 Version 16.8.3 yesterday and since then I've been having problems with the Error List.
Basically the problem is: When I try to test my project, click 'Start' and I get the dreaded 'There were build errors... etc.' error but the Error List no longer tells me what or where the error is. It doesn't flag up the error at any time thereafter either.

I can't discover how to proceed in this case. I've 'Undone' the previous steps until the error goes, but I can't see any faults when re-doing 'em one at a time, I say 'one at a time' but sometimes I can't just do one, because it introduces an error (which is flagged up) until I add the next few parts.

This has happened too often and in so many different areas of the project for it to be totally down to me, although I wouldn't rule out the possibility of it being my Win.10 laptop.


Poppa