Unable to Fast Craft on Minecraft IOS

I am unable to craft items quickly like it says you are able to in the game's built in help section. It says to craft items quickly to simply hold down the output item for items to be quickly crafted and when I do this no items are crafted and so I have to resort to quickly tapping the output item instead of being able to quickly do it, unsure if this is a bug but its just a pain to have be spamming the screen to craft quickly instead of simply being able to do what the game says I can do.