Hello there,
Multiple accounts, yes, but shared accounts no It will not work with Windows Hello.
You cannot have more than one person associated with Windows Hello on a single account.
Are you using Roaming Profiles?
A roaming user profile redirects user profiles to a file share so that users receive the same operating system and application settings on multiple computers.
Have you checked the Event Viewer for any trace?
If you cannot find anything in Event Viewer I would suggest you use tools like Procmon to find the root cause for this behaviour.
Hope this resolves your Query !!
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