Does jQuery UI's sortable has a bug when the handle is outside the element?

I have a list of dynamically added fields which uses jquery UI's sortable(). I have a dragging icon inside a absolute positioned tip that has each fields options.

When I try to sort the fields up and down, the placeholder (it's a red box in the demo) doesn't move. After some testing I found that If I remove the position: absolute; css rule using firebug it works, but that breaks the layout.

Here is a demo of the problem: http://mahersalam.co.cc/projects/namodgMaker/

First add 2 or more fields, then try to drag one of them to see the problem.

How can I fix this problem ?

Update: I tried to make the tip outside of the sorted field by using negative margins and floating and the problem still happened, maybe it's a jquery UI 开发者_开发知识库bug ?

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Have you tried Chrome? It seems to work there or I have not understood your app.