@ComputerHabit , Research and find some customers mentioned that it can be with the configuration profile "Interactive logon: Message text for users attempting to log on" and "Interactive logon: Message title for users attempting to log on". Could you check if we have set the profile in our environment?
https://learn.microsoft.com/en-us/windows/security/threat-protection/security-policy-settings/interactive-logon-message-title-for-users-attempting-to-log-on#security-considerations
Meanwhile, I notice it seems the login with the Azure Ad credential is failed. Here we suggest to check if the device exists in Azure Active Directory portal. What is the type? Is it Azure AD joined or Azure AD registered?
Please check the above information and if there's any update, feel free to let us know.
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