Thu Dec 20, 2018 7:37 pm
Having the same problem, using masks in fusion is impossible, it randomly shifts the picture.
Say changing the Soft Edge parameter, the picture is offset randomly or moving any handle on the mask, the picture shifts again.
It seems like this has to do with the position keyframes in the edit tab. I always reframe my shots using these controls in the inspector. Duplicating the clip, resetting the fusion comp and deleting the position keyframes in the edit tab seems to have solved it for now.
Man is fusion buggy, I really love it but these bugs are taking hours out of my days.