Update,
I've now got the images to show using this code below. Could you tell me how I can make it only pull the information from a certain post category.
<div class="sidebarnews">
{% set args = {post_type: 'project', posts_per_page: 10} %}
{% set posts = mb.get_posts( args ) %}
{% for post in posts %}
{# Image #}
{% set image = mb.rwmb_meta( 'logo_market', '', post.ID ) %}
<img src="{{ image['full_url'] }} ">
{{ mb.get_the_post_thumbnail( post.ID, 'thumbnail' ) }}
{% endfor %}
</div>