Issue w/ Sonar X3 and (seemingly) iLok audio plugins
I'm using Sonar X3 Producer and I've got a track that has suddenly started exhibiting some strange behavior. Basically, I started seeing the Master channel completely pegged (as if there was a feedback loop or something) and getting no audio. I discovered through trial-and-error that turning off the Virtual Buss Compressors plugin solved the issue. But then, as I played the track, the same issue happened as the lead vocal came in. This time, I turned off the 2016 Stereo Room plugin on that track, and the issue disappeared. I also get a hard "pop" when this happens, like when you plug in a live cable or mic.
I'm a longtime Sonar user, but I'm perplexed as to what is going on. The only thing I notice is that this is only happening with audio effect VSTs that use the iLok authorization. The plugins are legit, no funny business there. And any instrument VSTs using iLok (such as Ivory) on the same track are working fine.
Any ideas?