Can't login into Cloud account after password reset

Summary:

I am not able to login into Cloud account after password reset

Content (please ensure you mask any confidential information):

Cloud account: ***

Login email: ***

Oracle authenticator for 2FA is also linked to ***

I receive the email which contains the reset password link on this email address. After the password reset I receive the email confirmation that the password was reset. But the login with the new password doesn't work: "Username or password is invalid."

I was told in the support chat that I should use a former email address *** instead. But I don't receive the reset password emails on this address even this email account still works.