If a shortcode does not work please view the shortcode in the editor in text mode. If you copy a shortcode directly from the settings maybe additional html is copied as well. And this causes the shortcode to fail.
Enable the shortcode check: Since version 7.0.4 you can enable "Check shortcode" on the "Introduction" tab. If you enable this the plugin does check if the shortcode attributes are known. You will find typos, wrong quotes and missing spaces. It does not check the values but if all shortcode attributes you use do exist and are supported.