I can't remove unwanted reflections on the geometry cache

Hello guys. I faced a problem with reflections. Could you help, please?

I imported an Alembic geometry cache asset of a heart into my project. The Alembic is exported from Houdini. The problem is with the material. It looks like it has clearcoat reflections, or settings of a very glossy surface (with no roughness), even though I didn’t create clearcoat, and the material was built as a rough surface: specular = 0, roughness = 1. But I still see these weird ribbon-like reflections. How can I get rid of them? Any ideas?

PS
The shader model is Subsurface. Thanks