Hi
I’m not sure if this is BuddyPress thing or RTMedia thing but what appears to be a new Edit button does not actually take you to a edit functionality page but just a blank page see image attached. I am assuming that it should take you to the Edit page as linked from the lightbox e.g.
http://sharingdevsites.info/ssrebuild/members/lizthompson/media/111/edit/?
Attachment Link(s):
https://rtcamp.com/wp-content/uploads/rtMedia/topics/62029/2014/03/EDIT.jpg