Grass Paths, Nether Reactor core, and Glowing Obsidian aren't in the creative inventory.
Whether or not this would be classed as a bug I'm not sure, but I have noticed that while PC/Console have Grass Paths in their creative inventories, Pocket does not have it. Also, it doesn't seem fair that the Stonecutter (although useless) is in the creative inventory while the Nether Reactor Core + Glowing Obsidian is not in it.
Created Issue:
Grass Paths, Nether Reactor core, and Glowing Obsidian aren't in the creative inventory.
Whether or not this would be classed as a bug I'm not sure, but I have noticed that while PC/Console have Grass Paths in their creative inventories, Pocket does not have it. Also, it doesn't seem fair that the Stonecutter (although useless) is in the creative inventory while the Nether Reactor Core + Glowing Obsidian is not in it.
I am aware, but seeing as how PC/Console have the grass path blocks legitimately in their creative inventories (and seeing how we just got singular brick/nether brick in our creative inventory in Build 5) makes me wonder why we don't have grass paths in our creative inventory. The same could be said with the Nether Reactor Core + Glowing Obsidian (as they are currently useless, but the Stonecutter managed to stay in the creative inventory despite it being useless as well).
Update: I noticed that beetroot soup was also added to the creative inventory. I do believe that both PC/Console versions have the grass path blocks in their creative inventories as well.
According to the Minecraft Wiki, those blocks are only obtainable by using 3rd party apps, or with some tools.
http://minecraft.gamepedia.com/Pocket_Edition_data_values