Finally I figured out an easy way to reproduce this problem whish was bugging me for a while, can someone verify it too??
Setup: 810, alpha 2.26 or even 710, using UI2
1) Note what is the current room on the MD or Hybrid (my case office/Hybrid)
2) Play any music or video in the current room, using Media menu
3) Press F7
4) Go to the floorplan using Media menu
5) Stop the media by pressing the Off button above the remote control button
6) Exit the current screen by the right button of the Gyration mouse
7) now check the current room location?? (in my case it changed to Entrance)
I noticed this when I was moving media from room to room or room to squeezebox