Apparently on my machine this update hasn't been installed yet. It's called the Cumulative Update for Windows 10 Version 1903 for x64-based Systems (KB4512941). I thought this had already been installed on my machine but I see there is an earlier version of this update with the same name but with a different KB number, specifically KB4512508. Note that both of these are different from the Feature update to Windows 10, version 1903.
Note that in Windows Update, troublesome updateis shown as being optional so it won't be pushed onto your system unless you choose to do so. Not sure it was initially - perhaps this is Microsoft's way of making sure you are consciously applying it because of known issues. You can still check and install other needed updates - it won't hold you back.
Now that I know some are experiencing issues, I know I'm going to be cautious. It may seem like you're being a good little user to apply all available updates right away but it can be a bad idea. Unless an update is to fix a security issue being exploited in the wild, it can be better to wait a week or two, even a month before applying Windows updates. You can do this automatically by deferring updates under advanced settings in Windows Update.
With Linux I find this kind of thing rarely ever happens so I apply all updates right away.
