Affects Version/s: Minecraft 1.11.2, Minecraft 17w06a
Fix Version/s: None
Growing 2x2 trees surrounded by carpet was a no-go.
Dark Oak grows fine.
1x1 trees of all kinds grow fine.
The issue affects only 2x2 SPRUCE and JUNGLE trees.
One carpet next to the sappling is enought to prevent growth.
Tried with time and bone meal multiple times, in several locations and configurations.
1. Plant 2x2 Spruce or Jungle tree saplings
2. Place one carpet directly adjacent tp any sapling
3. Use bone meal on saplings.
4. Tree fails to grow.