Optical flow on a compound clip fcxp v 10.0.6

Hi, I have a technical question about the new version 10.0.6 when I do a compound clip, if I do a time strech on it, I cannot use optical flow... any ideas?

Well, I just tried this and you are right...any CC created in the timeline and re-timed will ghost out the optical flow option. But, you CAN slow or speed a clip by conforming the speed (assuming it is different than your project frame rate) and then optical flow becomes available. BUT, if you re-time the conformed CC, optical flow is once again ghosted.

I suspect this may be a bug in the latest version in which case we should report it thru feedback. Curious what others have to say.