I have NextGen Gallery on a multisite. It is not network activated. On the sites that it is activated, links seem to just redirect to the home page.
For instance: jariccodance.com
Any of the links at the bottom just take you tot he home page. As soon as NextGen is deactivated, the links work.
This issue is not limited to just front-end links, I've also found a number of other issues from the dashboard.
Please inspect and let me know what I can do to help resolve the issue. Thanks!