I know it's of no help,
ry1633, and I'm sorry to get your hopes up when you see you have received a reply, but I wanted to chime in to mention that I am also experiencing this exact problem, also in X2 Producer (to be exact, in X2a Producer, 64-bit edition).
I think I must have restarted the whole computer 5 or 6 times the other day among other vain attempts to resolve this problem. Ended up ditching the idea of using V-Vocal on the project at all. Will be watching this thread with interest, needless to say. Good luck to you (and me, I guess :) )!