I’ve looked at the theme function and seem to be an hook to the ‘pre_get_posts’ too. Maybe a conflict with the hook of the plugin?
Anyway, managed to get it working editing simplyexclude.php deleting the priority.
Changed:
add_filter(‘pre_get_posts’, array(&$this,’se_filters’),999);
To:
add_filter(‘pre_get_posts’, array(&$this,’se_filters’));
And it started working.
What I can do to make this edit permanent avoiding problem on update?