The rendering of brittle ice is inconsistent when directly below regular ice

Brittle ice rendering can appear inconsistent when placed below regular ice and does not match it.

Steps to reproduce:

Place brittle ice directly below regular ice (it’s best to see it when it's done under a frozen river) and observe how it’s rendering is darker than the regular ice above it (observe from the ground and do not go into water), it is and appears inconsistent with the regular ice block above it (even when their textures are similar)

Expected result:

Both of the renderings match each other when the brittle ice block is placed directly below the regular ice block.

Observed result:

The brittle ice block’s rendering is inconsistent to the regular ice block’s rendering directly above it.

Look VERY closely at the center of the image: