Jeff thanks for your help,
the 1st wav file for my actor I have imported is part of a song that I clipped out the begging & the end & had the actor singing the lyrics in the middle. Could this be causing the problem?
I am importing separate voice wav files for my actors. I click on the actor, I click on the voice record tab, then I import the pre-recorded wav file for the actor to say. I then do the same thing for the other actor obviously on a separate wav file import.
part way through the scene I have the music stop & that's when both actors lips are tracking to my imported wav files.
Yesterday I added a custom actor towards the end of my scene and when I imported the wav file for that actor it did not move his lips at all it & the lips of my 1st actor moved his lips even though I had clicked on the newest actor for the import.