Forge v14.23.5.2796-1.12.2
Growthcraft v4.0.4.300

• Bamboo Tree leaves don't despawn after the logs are cut down.
• Leaves are gray instead of having the biome color.
• Leaves are also gray in the inventory.
• Leaves drop leaf blocks when broken instead of saplings.

Just confirmed .... Bamboo leaves have the correct green texture.