Question: Microblocks & Shaders

Is there any known way to fix this issue. They are darker then normal blocks on the sides and from below but not above. Would this be a shader issue or a microblocks one. 1.19.2 is the version

<img width="864" height="575" alt="Image" src="https://github.com/user-attachments/assets/85079606-b9df-4a7c-a5be-1284f0e46694" />