The bug
Having a observer facing away from a grass block does not detect when a tree grows, changing the grass to dirt. It does detect if a block placed causes the grass to change and it does detect if the grass grows back.
Linked issues
Comments 5
Duplicate of MC-107664
Please fix this. You fixed the issue with the walls, trees, and observers. This seems like something that would be along the same line. This is a major issue that is keeping me from being able to finish my tree farm. 😞