Template:SkeletonDeformPartDisappear
From Synfig Studio :: Documentation
Why using skeleton deformation layer parts of the image are disappearing?
If parts of the image are disappearing when you enable the Skeleton Deformation Layer (and have checked that you don't have Cairo rendering enabled), is't surely because the image is cropped by bone influence area. You need to turn off bone distortion layer (from the Layers Panel, select it, enable width handles (Alt5) and set the influence area for each bone.
