Steps to Reproduce:

1. Enable the"Render Dragon Features for Creators" experiment;
2. Apply the attached resource pack to the world;
3. Enable deferred rendering;
4. Compare the stone block with any other block.

Observed Results:
The sky is reflected everywhere but the stone block, behaving as if the blocks' global MER were set to [0, 0, 0].

Expected Results:
The sky isn't reflected anywhere, as the blocks' global MER is set to [0, 0, 1]

Screenshots/Videos attached: Yes

Notes: This doesn't seem to affect entities. Additionally, if a lighting/global.json file doesn't exist the game will take [0, 0, 1] as the blocks' global MER settings and work correctly.