There is plenty of weirdness to be had from automation in Sonar. For instance, when I automate the arpeggiator on/off button, it only works if the automation lane in question is visible and selected during playback. And you cannot automate the on/off of an FX chain in the ProChannel unless that ProChannel is open in the console or inspector (Cakewalk have acknowledged this and said it's too much of a big deal to fix at present).
I wish they'd iron it out to be honest. I have lots of frustration with automation.,