The Drag and Drop creates multiple copies of the elements when dragged from Destination to Source

[ganesh-dks]

Hi,

I have used the FieldChooser in my project as a major dependent control. Thanks for keeping it free.
However at certain point it behaves differently. When I drag the fields from destination to source I get multiple copies of the same element to be dropped in to source and worse I can't even delete them.

The error pops up in Jquery-ui-min.js : - says
Unable to get property 'insertBefore' of undefined or null reference
that too in IE 10. Otherwise I wasn't able to spot it out.

I am not able to understand why this is happening because it doesn't replicate regularly.
I initialise the control from my code although I have placed the required divs in my page. They change as per user role type. I mean the control gets the order and arrangement of fields from backend on a per role basis.
Here's image

Please help ...........

[raszi]

The issue happens when you release your button when your cursor is outside of the drop area. If the cursor is inside the drop area then duplication does not occur.