Shortcodes Ultimate uses custom formatting function which is replaces original
wp_autop filter. Custom formatter used for posts and widget content. This function parsing content like built-in
wp_autop filter but with one difference. Custom filter doesn't placing paragphs tags around shortcodes. This difference is noticeable if you are using shortcodes like column or row.
Default WordPress filter wraps the columns in paragraphs and then the resulting markup is broken. If you are not using [row] or [column] shortcodes, you can disable this option.
Unfortunately, this option is often the cause of plugin malfunction. This is because the filter is used in many places of the site.