Has anyone been experiencing this?
 
I've seen this on Cakewalks Quad Curve EQ specifically. However it may be happening on other ProChannel Modules.
 
There is a wonderful waveform that bounces around under the 0db line when the EQ module is expanded.  For some reason the waveform goes and comes after I start and stop my playback.   I'm not sure whether or not the EQ is stopping when I don't see the waveform or if its still working when it no longer displays. 
 
I'm using X3e.
 
----- I didn't have the Pro Channel Strip turned on -------