When you have multiple masks on the tracks in a 3d parent track I have to first dump the mask tracks into a 2d parent track if I want to keep active
Shadows glows etc then include a blank empty event media track event the length of the mask track otherwise weird things = jumping and disappearing media flash etc happen.
Just wondering how the other guys are handling this

For example in the visual track 6 this is the 2D empty event
TRACK 7 MASK and so is track 9 separate masks for each own track