https://wccftech.com/windows-10-1903-now-breaks-pin-logins-for-some-users/

It’s becoming kind of redundant and boring, but here we go again… We have seen multiple reports of issues affecting small subsets of Windows 10 users this week (links added at the end of this piece for those interested in keeping a count of these bugs), and a PIN login issue is yet another one being added to this unending list of problems.

The Windows 10 cumulative update delivered to version 1903 on September 10 has been behind most of these bugs, including this latest PIN issue. AskWoody reports receiving a user report that said PIN login became unavailable for them on 3 out of 4 devices after installing the latest Patch Tuesday update. Here’s what the user said: