Look, i'm not sure it's a bug, we were testing an engine to get "!" when it happens a player is near to familiy object like fish. This one (left) works:
<img src="http://i.imgur.com/sGdH7.png" border="0">
and other fish (right) doesn't work:
<img src="http://i.imgur.com/tAUvW.png" border="0">
They are part of family.
There a .capx file, you may see it.
http://dl.dropbox.com/u/76227787/FamiliyBug.capx