As title says when using show products in the knowledge book and you have more then one form that can make the same final end product say as an example Kenaf Spool (Beginner fabric spool form and Beginner fabric transmutation form can both make Kenaf Spools) it only shows you one of the two choices, which may not be what you want.
Not sure but looks like it shows you the higher form only either in tier or alphabetical order.
Am I making sense? Nor if it can even be feasible to have it show the highest tier of all forms that can make the same product.