I’ve had a quick check and can’t reproduce the issue with the CC5 HD characters I have tested.
Which CC5 characters are you testing in iClone 8.6? Do you mean a custom character you have created in CC5, or one of the embedded HD characters that come with CC5 and iClone 8.6?
I encountered the same error. I am using CC5 Trial, and I made small edits to the _HD Neutral M character. Even if I just use New Project, add the same character, and go straight to Edit Facial, that error message appears, and trying to adjust, for example, areas of the forehead is not working. However, if I move the mouse a couple of times, they do start to function. Maybe I wasn’t moving in the right direction or with the needed amount.
Sorry for the late response. This was one of the default characters (_HD_Ariana) that I tested a few features on such as the Actor Mixer. I then sent the character to iClone.
Thanks for sharing more information. Please ensure you have installed or updated all your “Free Resources” as Joanne explained above. That should hopefully fix the problem.