No matter how many times I try, I cannot change my passwords because I keep getting this error message.
The new passwords you entered do not match.
Even when I copy and paste the passwords it still gives me this error. There is no way that copying and pasting could result in two different passwords.
I think the following post could be your answer…
… I believe that you will still need to enter your current password into the Current Password field at the bottom of the profile page to authorise the password change.