Problem with custom crafting gui

Hey ! I created a custom crafting gui : slot 0 1 2 = input , slot 3 = output

There is a " Craft " button : ( This is test crafting )

contains[inherited, 0] == mcreator_rubyGem.block
    contains[inherited, 1] == mcreator_rubyBlock.block
        contains[inherited, 2] == mcreator_rubyBlock.block
            place item in gui slot / mcreator_rubyBlock.block / slot 3 / inherited / amount 1
            remove item in gui slot / inherited / amount 1 / slot 0
            remove item in gui slot / inherited / amount 1 / slot 1
            remove item in gui slot / inherited / amount 1 / slot 2

And when I try to grab the crafted item , the craft is canceled !

Please help me !

Sorry for bad english i'm french .