Hmmm... if something changed, that might affect me since I routinely assign patches to empty MIDI tracks in order to control external MIDI devices.

But, even if it won't stick from the track's right click menu , you can insert patch changes in a MIDI track 2 other ways:

1) from piano roll, click on CONTROL then from the next drop down listbox pick PROGRAM CHANGE... then in the lower pane, click on the number of the patch you want to use.

2) Another way to do exactly the same thing is to ...
...a) hilite the MIDI track
...b) open the event editor...
...c) insert a program change
...d) enter the number of the patch you want loaded

These two approaches should stick whether you have MIDI data on the track or not

Keep in mind that if you ever want to change the patch later, the track right click menu will NOT override patch changes in the event editor. If you set the patch in the event editor, you have to update it there too.

------------oops-----------
I was talking about RealBand.. I just realized this is the BIAB forum. My bad.