Bug Report it is not possible to create items using purple recipes

[Barracuda]

I can't use the purple recipe to create armor for a dragon. The recipe has been studied, all resources are available, but when you click "Start Crafting" nothing happens.

 

[Eggshell]

Hello Aesone, at the time you learned the recipe, had you crafted all the neccessary mats already or did you you craft these after having learned the recipe? and is there a (1/1) behind the recipe of the item or is it just empty?