Draggable inconsistently triggering sortable sort
I have a draggable connected to a sortable. The sortable has about 20
items, each about 120 pixels high, inside a container about 600 high,
so that only about 5 items are visible without scrolling. When I drag
a draggable inside, it correctly triggers sorting with the first 5
items, but it fails to do so with any items further down in the list.
It appears that it only works with items initially visible when the
sortable was rendered. Any help?