Drag And Drop Bug in Repeating Groups

Im using the drag and drop element to delete items from a repeating group. but when i grab an item and put it in the dropped area, it gets deleted but for some reason the item next to it gets deleted as well. This only happens when i pick an item which has an other item to its RIGHT. So if i have 3 items apple banana and mango in that order and i delete banana, mango gets deleted too. But heres another confusing thing. The mango comes back when i refresh the page. Can someone please help?