In the past, to add a unique item to a brew - e.g. a flavouring - you could simply type in the "Other ingredients" section. However, when saving recipes, this throws an error saying the name of the "other ingredient" has not been specified. In order to clear the error, you have to wait for the dropdown to appear when you've finished typing and click "Add [name you just typed]". The same happens on custom fermentables - you used to be able to just type the damned name, but now you have to click that "add" button as well. If this is a new feature, it's bloody stupid. If it ain't, it's a fault. Either way, it's a pain in the arse when building an heavily-flavoured stout.