Frame Error - Visible Matte Edge
Visible Matte Edge is incomplete matte of an object layer causing the image to leave frame before reaching the active image edge.
A technical error that negatively impacts the customer experience as on-screen objects are cut off and essentially incomplete.
A character or object of focus is rendered out of the frame without on screen motivation, typically active image reaches the edge of the frame, however object does not. May be poor compositing if edges are noticeable against other objects.
How to Prevent:
Review matte edges in areas where minor re-positionings have been performed, as well as key-framed areas.
Re-frame image so it completely fills the expected active image. Likely from a minor re-positioning, and key-frame/tween may need to be adjusted to correct.