I have noticed odd behaviour happening with Twonky 6.0.33 (running on my QNAP TS-219 NAS) and my Xbox 360.
Basically - if I change my Navigation Tree from "Advanced Media View" to any other view (such as "By Folder" or "Classic Media View") all of a sudden my 360 no longer picks up TMS running on my NAS anymore.
I did try restarting TMS, restarting the NAS, restarting the 360 (basically - I did try turning it off and on again ) but to no avail.
So it appears that the 360 will only work with TMS when set to "Advanced Media View".
This, however, does not happen with my Samsung TV nor with Twonky PC Media Browser (i.e. http://nasip:9000/webbrowse ). They work fine not matter what the setting for the Navigation Tree.
Basically - it seems to only be an issue with the Xbox 360.
Is anyone else getting this?