For the last couple releases with fresh installs of both xbmc and mc360 the 'enter master mode' and 'leave master mode' in the right thumbstick menu (contains shutdown, reboot, restart, etc.) have been switched.
Ex. When not in master mode it displays leave master mode and when in master mode it displays enter master mode.
The master mode options still function correctly and alert correctly at the bottom of the screen ('entered/left master mode') but can be very confusing as the incorrect text is displayed in the right thumbstick menu.