Help... Dimensions object too shiny after import in After Effects!

Please help...
I created a simple 3D model of an open book in Adobe Dimensions. On the top pages I placed a jpg representing a spread from a picture book. I made the material of these pages matte so that everything remains readable when I put a light source on it. In Dimensions, this goes well.
I imported this scene into After Effects and there the object loses its matte look, and text and illustrations become over blasted and are no longer readable.

I have played with different light sources in After Effects, but nothing solves the problem.
I realize that it is a crossover of 2 software programs , however, I do not know where the problem lies. Perhaps it is impossible to change or fix the matte material.
I asked the same question in the After Effects community.

Does anyone have an idea what I am doing wrong?