This is a theme design issue, not an Organize Series issue. Organize Series automatic insertion of series information via the WordPress "the_content" and "the_excerpt" hooks. The theme is likely using "the_content()" or "the_excerpt()" WordPress functions somewhere on the home page.
To fix, you can go to the Organize Series optinos page and disable the automatic adding of series meta information (a checkbox at the top of the page). Keep in mind though, that you'll also see the series meta information disappear everywhere else. You'll have to add it manually using the functions available in the orgSeries-template-tags.php file.