Hi Paul,
Nice to hear you say that (even though this is an old post) I find the same thing as well.
if I can't get scriptinglistener to output anything in CS6 or CC, I can open my old CS3, do the same thing (if that feature is available in cs3) and I often get scripting listener results.
next time I find an exact issue where that has happened I'll try to remember to post it here.