Pinned items from Admin not staying Pinned to top of Stream

I'm using EasySocial v1.3.28 and I've pinned 2 items in the ES stream in hopes that they would stay at the top of the stream. They are not.

Url where this is happening: http://rvpoints.com/community

Please advise on how this can be fixed.

thanks,

Dan Cote
RVPoints.com Developer