Try a recent build 0.14.0 from Mojang with a whole bunch of bug fixes! Maps now work at the highest zoom level, because the reduction is too "expensive" in the anvil. This is a temporary change until you get to craft like on the PC.
Winter biomes, carpets and plates are no longer slow!
Map can now be created with the help of a special button.
The distributor, a hopper, and the extractor now has a bar.
If witches aren't real goals, they will begin to escape from the water.
The items from the trolley to the trunk now'm dropping items in Creative mode.
Fixed crash when deleting subject from the frame.
Maps created by the client will now be displayed even if the player is offline (offline).
Fixed crash when destroying the extractors and distributors in a flat world.
Fixed crash while trying to put any item into the cart with a chest.
Fixed crash due to recipes.
Fixed high sensitivity in Governance.
Pointers using the arrow in the box now appear on the map in a frame.
Enchanted items Shine less brightly.
Fixed color dyed enchanted armor.
Fixed animation enchanted item.
Customers no longer teleports you to the Lower world after the restart of the client.
The funnel no longer throw away items if stack has reached its maximum.
Residents stop in some cases.
Play sound on iOS now uses less energy.
Mobs no longer burn when they are in the water during the day.
Chests now properly closed in multiplayer.
Removed flying trolley in the biome Mesa.
The red Sandstone is no longer crafted in ordinary sand.
Shot with the player's head mobs no longer destroys previous head.