RDS Sessions persist with active session limit of 3 hours

Environment is Windows Server 2008 R2 web server with no AD Domain.

I have a user that connects to the server via RDWeb access to run a VB application. I just logged on to the server and see that there are 6 "active" sessions going for that user's login. The oldest session was initiated 20 days ago. I have the settings for that user at:

End a disconnected session: 30 minutes

Active Session Limit: 3 hours

Idle Session limit: 2hours

When a session limit is reached or connection is broken: End session

So how is it possible for these sessions to persist for as much as 20 days? Why are these settings being ignored?

Thanks for any answers.