Although it's not the exact same scenario as what you're discribing, I've had something very weird happen just recently on my last song by total accident.. and for the life of me, I can't seem to duplicate it again.. and it would be very useful to me, just to know *why* it happened..
I've always used track automation in one form or another on every project of mine in Cakewalk.. either for volume, panning, muting, turning effects on and off... pretty much, everything, but, I've usually had to enter nodes in the automation line manually, or by manually adjusting the automation with the track "Read and Write" buttons set appropriately, and the proper automation brought into focus..but, as mentioned above , if done manually, you'll end up with micro-second complex nodes added..which takes a bit of editing to smooth out these nodes...
But... in my last project,
1. I had a midi synth on track #4 (OmniSphere), of which I froze the track. I added a Sonitus Compressor to this tracks FX block
2. On track #5, my guitar track, I created a "send" to the Sonitus Compressor residing on Track #4 (OmniSphere), and adjusted the Sonitus Compressor (side chained) to pull back the volume on the Omnisphere synth track when the guitar reached a certain threshold.
3. Now, and what I don't understand is, and can't duplicate it, somehow, a volume automation lane was created on the OmniSphere Synth track lane which reflects the volume changes introduced by the Sonitus Compressor (controlled by the guitar track). I did not manually create this automation lane, but, it perfectly controls the synth output, and it's changes are shown on the OmniSphere console slider during playback, as it should...
4. But, this is just regular "side_chaining" of the "Sonitus Compressor"...something I've done hundreds of times before. I've never had this produce an automation lane before. I know I did not create this automation manually, because I would have added nodes to the automation lane to have the volume level for the synth set at "zero" until the song actually started
Wuz up here ??? It would be really useful to be able to duplicate this in the future... Anyone know ???