Bugged in game.

Sitting at EG, working illusions with Allereli, some wizard (blech) walks in and has a hawk familiar right after I illusion my demon to a hawk. I'm then unable to target my demon to dispel the illusion because illu demon hawk dispel provides no room for other hawk or grey hawk or whatever.

Option two, move to another room, so I did that. then tried tell mdemon follow, got the message "But your demon is an ashen grey hawk." Which it was, the wizard's hawk was red. So apparently, if a demon is in the same room as something with the same noun, it breaks.

Option three, order the wizard to send the hawk away, this solution worked.

Tell your illusioned demon to move one room away and then back (e.g., tell mdemon move east, followed by tell mdemon move west). That will place your demon first in line. But, yes, it does seem to be a bug.

Were you typing "tell hawk" or "tell mdemon"?