Windows 10 May 2019 update blocked for anyone using USB or SD storage

Found on Ars Technica on Wednesday, 24 April 2019
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Because of an issue that's frankly remarkable, Microsoft is blocking the update for anyone using USB storage or SD storage. That is to say: if you have a USB hard disk or thumb drive, or an SD card in an SD card reader, the update won't install.

As with so many Windows 10 bugs, the real question here is how on Earth this was only detected at this late stage in development. USB storage is not esoteric or unusual, and a problem like this is going to affect a large proportion of Windows 10 users.

It's getting more and more ridiculous. It's as if Microsoft tries to look incompetent.