Sortable position object does not start at the first time

Sortable position object does not start at the first time


I'm using ui.sortables for a project, but i need to know the position
(x precisely) where the item was dragged. The thing is that i'm using
start option with it's callback [function(e,ui){ }] and using a for-in
to know what is happening with ui. When i drag the page for the first
time, it shows me this:
helper=[object Object]
placeholder=[object Object]
position=undefined
absolutePosition=undefined
options=[object Object]
element=[object Object]
item=[object Object]
sender=null
See positions. The next and follow times, there is already an object
both properties.
helper=[object Object]
placeholder=[object Object]
position=[object Object]
absolutePosition=[object Object]
options=[object Object]
element=[object Object]
item=[object Object]
sender=null
I want to know from the first time when the person moves. Is this a
bug? An expected behavior? Is there a workaround you know?
Thanks in advance.