I previously reported how the 5.1 channels into Pro Tools came in from VEP5 in the wrong order  Now I'm finding another strange behavior.  

If I make a stereo VEP5 then create another stereo aux in Pro Tools, then under input/plug-in I can select any other stereo pair (Out 3/4, Out 7/8, etc.).

However, if I make a 5.1 Aux and have a 5.1 version of VEP5 then I can only get input on the first six channels.  If I create another 5.1 Aux, go to input / plug-in and select "Out 7-12" then when I release the mouse the input doesn't take.  It still says "no input."   Clearly the channels are there since they show up in the list, but I can't select any of them.

I'm running OS 10.7.2 and Pro Tools 10.0.0