@ChikaraTaro,Thanks for posting in Q&A.
To clarify this issue, please check the following.
1.Could you please confirm us that what kind of account have you used to login when shown "Wrong password"? Microsoft Entra ID account or local account?
2.If the account is Microsoft Entra ID account, please try to login in other devices using the account and see if it can login successfully.
3.Please check if there exist security baseline with an AllowLocalLogOn setting in Intune portal, as this may prevent other accounts logging in.
Please check above information, if there is any update, feel free to contact me.
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