Grey - Ghost device icon remaining in Aneman after restart.
Problem
You have remaining grey icon / ghost devices in ANEMAN, for devices that are not available. Even after you restart the icon is there
Solution
ANEMAN will always show devices that were placed in the Pinned Zone (Pin icon - upper part), even if no longer present.
Move the the ghost device into the World Zone (World icon - lower part), after a restart of ANEMAN, the grey icon will no longer be displayed.