Cannot change password through custom page

[atrp]

Hello,

We are trying to change the password for Okta users using a custom page.

        changePassword: {
            enabled: true,
            uri: "/api/change",
            view: __dirname + "/views/change-password.jade",
            nextUri: "/api/login?status=reset",
            errorUri: "/api/forgot?status=invalid_sptoken"
        },

However, when we reach the change password page (/api/change?sptoken=85YPx2dUcG2f7XHb0lHO), after we input the password twice and click login it just redirects to the same page and does no change the password.

Thank you.