I submitted a Problem Report for this, the text follows. Anyone else run into this?
I have had so much trouble automating Cakewalk plugins over the years, I have pretty much decided to treat them as static, no automation possible. The exceptions are Sonitus plugins, Channel Tools, and z3ta (1, 1.5, 2.1) - I have had no problems automating them.
Using Sonar Producer X2a:
1. Create an automation envelope, including nodes and value changes, for a ProChannel EQ Gain control.
2. Leaving the ProChannel controls view tab active (ProChannel controls in view), select a different track (click on its control pane in the track area).
3. Navigation from marker to marker using C+Sh+PageUp/PageDown does not work normally any more. Normally you can hold the Ctrl and Shift keys down and press PageUp or PageDown over and over to jump from marker to marker, or even hold down the PageUp or PageDown key and the "now" cursor will rapidly advance through the markers. With the automation envelope in place, when advancing through a region of time where the envelope is causing gain changes, you must now release the Ctrl and Shift keys before the now cursor will advance to the next marker.
4. As the Ctrl and Shift keys are released and the "now" cursor advances, random changes sometimes take place for the value of ProChannel EQ Gain (mainly the same band, but I think I saw other bands affected, too) on the track in view, or on other tracks.
5. The same can occur when using the Ctrl-PageUp and Ctrl-PageDown cursor navigation method.
6. As near as I can tell, his applies to all rotary controls on the ProChannel track EQ and the ProChannel track Compressor.

Hi djh10101
 
Re: the random eq changes during write automation, did you ever get an answer for that? I've got the same problem in two projects and so far Cakewalk support haven't given me an answer. I hoped X3 and Platinum would solve it but no. I've copied and pasted to a new project
 
Any suggestions gratefully received!
 
Thanks
 
Gary

This looks like a bug I've run into as well. At the time I reported it, I was told that I was inadvertantly enabling quick-groups. I said at the time that I didn't recall using the CTRL key at any point before the problem occurred, but I had completely forgotten about moving around the PRV with CTRL-PGDN and CTRL-PGUP. I suspect that's what is creating the quick-group. When it happens to me, the PC gets activated on every track and the current EQ settings for the currently selected band get copied to every track as well.
 
I'm so aware of it now that I save the project after every little change, but only after verifying that the PC is not enabled on any adjacent tracks, just to be sure.
 
Regards,
Dan

Thanks Dan,
 
Ctrl+s before write automation is the key. I do think it's a project file corruption problem.
 
Best
 
Gary