Hi Sid,
I ran into the same issue and ended up using the default mendix log in widgets. The default widgets are easy to setup. Just add a login Id text box, password ID text box, and sign in button to the page.
If you want a forgot password link, you can use a microflow button rendered as a link and add it next to the sign in button.
Also here is a link to the authentication widgets in the documentation.
https://docs.mendix.com/refguide/authentication-widgets
Hope this helps!