It asks me for security details, which I enter. then it takes me to the next screen where I see the New password and Confirm password text boxes. After I fill them both and press change password it kinda refreshes the page and says that some information is missing as it does for the user above me.
I can then re-enter the new password and press the button again however this time no information is missing but my password also doesn't change it just takes me to the start of the change your password form.