Metabox fields changing the values saving the page

Hi,

I am trying to retrieve values from a dropdown with some taxonomies into a page.
Basically I have a custom post type called Events, these events are sort it by taxonomies and what I want to achieve is be able from the backend select from which event type taxonomy it will be show in a page.
The problem is every time that I save the two event type values will be saved as the 2nd one.

Links from my backend screenshots: https://www.evernote.com/shard/s332/sh/b6704fb4-5066-4801-ac0b-45f9a86358d3/4295ea47d7da5ab3

Any help will be appreciated.
Carlos