I have read the previous thread on this board that covered a similar topic, and I found no solution.
I have a video taken from the basic software the comes with the driver for the Logitech webcams. Professional, I know! But it is perfectly in sync on anything that I play it on, until I put it into HitFilms at which point it goes horribly out of sync! I made sure project had the same fps and sample as the original video, but I am still having this problem!