It looks like Microsoft is choosing to ignore this (I just got a notification that they changed the issue to "Closed - won't fix":
https://developercommunity.visualstudio ... fails.html )
Is there some way to reopen it? Or to appeal? Or just repost it? This is a serious regression and it seems they're just burying their heads in the sand. I have many airgapped development systems, and not being able to get them properly setup anymore is significant enough an issue that it will likely force my back to an outdated version of VS. While I'm baffled that they'd simply ignore this, it would be nice if there were still a way to encourage them not to do so...