I just checked this out and see no problem.
I went to my main groups page (where all groups I'm in are listed) and could see the indicator to tell me there were 63 new uploads in one of my groups. I went to the group, viewed the vids/pics pages, then went back to the main groups page and that number 63 had changed to zero (as it should because I viewed the uploads in the group).
I then added an upload to another one of my groups and checked the main groups page again and there was an indicator to show that I had uploaded 1 to my group.
It's working exactly as it should be.