Describe the bug
The top of the top-leftmost book in normal and rainbow shelves has a weird z-fighting-like effect.
Screenshots or crash report (if relevant)
Versions (please complete the following information):
- Minecraft: 1.18.2
- Mantle: 1.18.2-1.9.31
- Inspirations: 1.18.2-1.3.0.9
