It is possible.. This is why i posted this, im curious if others are getting this issue..
Hardware wise, Im running the standard HomeGenie image on a raspberry Pi ModelB.
With a Z-Stick2 Z-Wave interface connected to the first USB port and a CM15A X10 controller connected to the other USB port. I also have a 4x Relay board connected to the GPIO outputs.
I have also changed the port number that the web interface is running on, although im pretty sure i had this issue before i changed this..
I dont get any error messages on the debug console that im aware of.
I'm just guessing, but since this doesn't happen to me either, is it possible this is related to your specific automation hardware? I'm running a CM15A X10 controller. If I unplug it, I get a bunch of error/warning messages in the mono console complaining that the interface is not detected. Perhaps HG has something similar that you could see in the debug console to determine what's causing the hangup?