Hey both of this is default behavior. You typically want slideshows to autorotate on single pages but most of the time its absolute overkill if you are located on the overview page and every post has a set of images that autorotates. Drives me as a user nuts.
If you really want that you can change that by opening includes/helper-slideshow.php, and search for
if((avia_is_overview() || avia_is_dynamic_template()) && !$this->force_slider)
around line 92. change it to
if((avia_is_dynamic_template()) && !$this->force_slider)
and it will accept the setting that you apply in your backend
PS: buttons are not mis aligned, thats a styling choice ;) Sometimes I want to escape those boring patterns with little changes...