Pretty simple, I restocked my custom apparel and immediately checked this new sorting feature option, expecting to see it at the top, or near top, of the display order.
My apparel restock appears on the first page as the 64th entry, far behind many items stocked at less than (5) despite my looking literally within 10seconds of restock. Just seems like a simple sorting error. The apparel I am referencing is the "Little Red Riding Hood" for clarity.
Not sure if the other sorting options have errors, I haven't noticed as clearly as this option!