If you need anything else, please let me know. The most recently attached project file is extremely simple. The functioning of the two essential properties are very obvious. You can recreate the problem in four easy steps: Create a new comp (1920×1080, name “Precomp”). Add a new shape layer with a centred, 400×400, blue-filled rectangle (turn on: 3D layer checkbox, "accepts shadows" in the material options, and set layer Z position to -400). Drag the rectangle path size property to the essential graphics panel properties for "Precomp". Create a new comp (1920x1080, name "Main"), add: a camera a point light (casts shadows: on, Z position behind camera) the precomp (turn on collapse transformations and 3D layer checkboxes.) a red solid background (turn on 3D layer checkbox and "accepts shadows" in the material options) Adjusting the rectangle size essential property changes the shape of the blue box, but the shadow does not correctly reflect changes from the default values. Thanks again, I really really appreciate the help!
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