Kurento: Releasing Elements

So I'm using kurento to stream a WebRTC stream to multiple people in NodeJS. When the stream ends Kurento does not release the memory. This is the code that runs when the stream ends.

users[shareID].pipeline.release()
mediaServer.close()

It releases the pipeline and then closes the media server. The memory is not released. Do I need to release each users' endpoint individually?

via Cameron Clapp