Hello,
You may experience this issue if the contents of the NGC folder are damaged or corrupted. This folder stores keys associated with your Windows Hello PIN, so corruption within it can prevent the PIN from working correctly.
To resolve the issue, delete the contents of the NGC folder by running the commands below one at a time. Then, set up a new PIN and check whether the issue is resolved.
Open the Command Prompt (Administrator) window.
Sfc /scannow
takeown /f "C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft\Ngc" /r /d y
icacls "C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft\Ngc" /grant Administrators:F /t
rd /s /q "C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft\Ngc"
Once complete, go to Settings > Accounts > Windows Hello PIN and reset the PIN.
Restart your computer and sign in.