If you don't know where to find the vizconnect config file, you probably didn't use vizconnect
Check what tracker the viz.MainView is linked to, and what things are done to that tracker. Sounds to me like the MainView is just stuck in the ground (or somewhere else outside the level) in your "maze" demo because it's not connected to the controller node, and in case of the pit demo, the PitTrackedFaller class is not applied to the correct tracker either.