This is a common operational issue after changing password, not an account anomaly. The reason is that MT5 software remembers the old password saved during the last login, and the password change cannot be automatically synchronized.

Solution: In the password input field on the MT5 login screen, first clear the content that has been filled in, then manually type the new password character by character and click login. After the first successful login with the manually entered new password, the software will automatically save the updated password.

Common auxiliary troubleshooting: Please confirm that the keyboard case status is correct (Caps Lock key is not accidentally turned on), and the password is case-sensitive.