Dan,
I seem to be battling two issues at the same time.
What I have discovered is that what I posted earlier about the defunct LA-2A si not entirely accurate.
After replacing the defunct LA-2A with T-Racks 2A (since I could not load CA-2A as a VST yet) I've discovered that if I try and turn that off or delete it I get a same crash just like when I was dealing with the defunct LA-2A.
But what I discovered is that those plugs were both following the Waves Bass Rider Mono (which appears to be using the VST3 version, whereas X2 was using the VST2 version).
I am going to start another thread for this distinct issue.
I will follow up on the silent playing shortly.