Transports group shows up twice

In exodus 9.0.39 and 9.0.40, I sometimes see two Transports groups. 
Only one there when I log in, containing the transports I'm subscribed 
to, but if I ever toggle view online/all then a duplicate but empty 
group appears.  It doesn't matter if I start viewing all or viewing 
online only, but as soon as I switch, an empty Transport group appears. 
  The only way to get rid of it is to log off and back on.  Is this a 
problem with my roster, or with Exodus?

Here's something else interesting.  Just for kicks, while both transport 
groups existed, I dragged a contact to the transports group.  Regardless 
of which transport group I drop it on, it shows up in the empty one, the 
one not containing the transports.  If I log off and back on, it shows 
up in the same group as the actual transports, but then if I drag 
another in, it goes in the empty transports group again.  Weird.  This 
smells like a bug in Exodus.

Thanks,
Joel