object mask is duplicating the mask during playback and rendering of the footage after the mask is applied.

Object Mask applied to footage moving the object during playback and scrubbing. This shift in the object’s position is also applied in the render, making the footage unusable. 

This is happening on every instance of the object mask. It was not happening before the update. It does not appear on the instances of the footage masked before the update. When I go back to previous scenes in this project that were completed in previous updates, the mask is still applied correctly with no duplicate image during scrubbing or playback.