I figured someone who uses the dim feature would chime in, but it appears no one has. In general when you are trying to figure out what's going on with HG, you need to check the log. You can look at the log that's built into the web interface, but that only gives a high level of operations. If you want to see what HG is doing behind the scenes, you need to look at the Mono output.
If you are using Linux, you can do this by stopping the HG process and launching HG from the command line. The command is in the file:
/usr/local/bin/HomeGenie/startup.sh
If you are running Windows, you would need to stop the process and run HG from a command line.
Once you have things streaming to the console, you can look at what HG is doing and verify that it's acting how you expect it to.
FWIW, I have posted this suggestion several time as have a few others.