Events + / Upfront not playing nice

Hi there,

I've started developing a site using Upfront / Spirit and come to use the Events + plugin. when using the [eab_calendar navigation="yes"] shortcode the navigation buttons work but you are returned to the top of the page when using page anchors within upfront. Not sure if the issue is Events + or Upfront.

You can see it in action on my site

Password to access is 1290