This product produces beautiful animated booklets! Plus, I am using it with a RTX 3090 in AE 2019.
Following the author's instructions, I replaced the Optix1.dll (use version 3.9.1 only), added my card to the raytracer.supported.cards.txt, changed my 3d raytracer to legacy, set the Previews preference to GPU, and most importantly, set the Expressions in project settings to Legacy Extendscript. And it worked with my RTX3090!