As the title indicates, when I use an El Vibrato Power Sphere, it doesn't remove it from the Mafia Inventory (though it does in game). Need to restart Mafia to bring back in line.
Not a solution, but while you wait for this to be fixed, you can do refresh inv in the gCLI or use the "refresh" button at the bottom-right of the Item manager tab, instead of restarting Mafia.