EFIS COMP MON message

[Lauramks2]

My research tells me that this message shows up when there is more than 10 knots difference between the airspeed at the pilot side and the copilot side. It is amber and most of the time I have ignored it but sometimes it affects the autopilot and kicks me back to "ROLL" mode. Took me a few approaches to figure out why I was moving off track. Took me longer to realize I needed to hit APR mode again. Now that I have figured out how to compensate, I am wondering if this happens to others. Is it a glitch or is something causing it. I thought it might be ice in the pitot but probe heat was on. It is irritating at worst and doesn't change my flying much but if anyone has some insight, I would appreciate it. If this happened for real, would I switch to a different ADC on the reversionary panel? 

[BigWalt1011]

I can confirm this CAS message "EFIS comp mon" in yellow appearing (usually for me around 2500 AGL till touchdown, and possible once while taxiing to FBO. Happen on a regular basis. Using XP12.1.3b3 and CL650 v1.8

I'm curious if something got "buggered up" with an update, been awhile since I've flown the 650, but I don't remember this CAS message ever popping up, as said, now a regular occurrence