As a result of testing, it was found that the local login works if the password does not have special characters such as *, #, and so on, and if the special characters in the password are present, then an error message that the username or password is not correct. Try the password "admin" part correctly, try the password "admin #" - the error message. The error only appears when you try to login from the mobile application.

All our AD accounts have special characters.