Exclude categories not working properly

I’m using this code in my main site: http://patacoinstv.com/

<?php echo do_shortcode('[recent_post_slider category="2,6,4,3,5,10,23,28,29" exclude_cat="1,12,22,25,27" design="design-3" limit="8" show_category_name="true" show_author="false" show_content="true" dots="true" arrows="true" autoplay="true" autoplay_interval="3000" content_words_limit="45"]'); ?>

I have some posts with multiple categories, such as podcasts which I want to have both the podcast category, and another category to show what the podcast is about.

The problem is, I try to exclude a podcast category (say, 25), but if that post also has a category included in the code, like 2, 6, 4, etc… it will still appear on my slider. I don’t want that category in my slider. Is there such a conditioner? or why is it not working for me?

Example: http://picpaste.com/pics/dados-Lt3vwNhn.1470972070.png
This post has both Tabletop and Pintas & Dados categories in it, but my shortcode is supposed to be excluding Pintas & Dados categories from it… and it ain’t working

https://wordpress.org/plugins/wp-responsive-recent-post-slider/