Won't accept PIN and won't allow new PIN to be created.

[Windows 11]

After a recent update, the PIN no longer worked. The system asked for the PIN to be changed, required full log in with user name and password, but then the PIN change/add app won't accept a PIN number. You type in the first number and the app closes. This occurred after several recent Windows updates. Before rolling back the updates if that's possible (might not be in this case), I would like to know how this can be fixed.

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