Search format not matching taxonomy query

Ok, the problem was with my radio buttons. 

<?php foreach( $regions as $region ) : ?>
<label><input type="radio" name="region" value="<?php echo $region->slug;?>" /><span><?php echo $region->name;?></span></input></label><br />
 <?php endforeach;?>

I have solved this problem by giving the radio buttons a name and value and not using any symbols in that name or value. It really was that simple.

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