EXS 24 Logic Sampler Users Group

I had 5 EXS instruments instantiated and I wanted to automate the 
filter cutoff frequency.  I put Logic in record and moved the knob 
with my mouse to record the data.  When I went to play it back, I got 
no action from the EXS.

When I looked at the Event list everything looked fine except that it 
didn't say anything in the info column (where it normally says 
EXS#xx).

After further investigation I realized that the Low Cut filter that I 
had plugged in on that track had showed up in the list of Controller 
numbers 'cutting off' the regular EXS parameters.  When I unplugged 
the Low Cut plug, then I saw the full list of the EXS parameters and 
the automation played back fine.

I was wondering what the logic is with this type of setup.  Can I not 
have any plug-ins on an EXS track that I want to automate?  Is there 
a way to determine what Contollers a plug will use or if it should 
respond to MIDI data at all?

Just wondering if any of you have run into this and found any 
possible workarounds.

thanks,

Philip