I planted a potato and carrot. The animation started but when it was suppost to grow instead it drop a potato/carrot.

1. Use hoe to till grass.
2. Took a potato and place it on the farmland.
3. Waited for a while.
4. Crop didnt grow instead it drop a potato/carrot.
5. Tried again same thing happen.
6. Downloaded mc.jar again and it didn't work.