I have an active listing in Toys & Models>Dolls>Barbie>Clothing category which was a multi-quantity listing prior to the success fee change. I went to make a new listing using the 'Sell Similar' option realised that the mutli-quantity option was not there, but the 'When the buyer purchases more than one of this item' option was still showing.
On the Price & Payment tab of the website listing page, there used to be a Quantity of items field. Very useful is you had 2 or more of the same thing to sell. It's always been missing from the App. But now this field cannot be found on the webpage as well. This effects existing listings set up before the Success Fee change, and for new listings since the Success Fee change. I'm using Chrome - updated to latest version.