Interesting, but ok. I think there was a step I missed. I agree. I wouldn't think it should have any effect on it at all. Though the result seems to occur on all my devices I test with.
I made the capx simpler just to show a single sample rather than show that it seems to effect all the DnDB objects. I moved the controller stick off for the testing purpose and I put the stick in the folder.
same location, same file name, but modified
CAPX: dl.dropbox.com/u/14087254/DragAndDropBug.capx
Not working sample(default)
put finger(mouse) on large grey circle(not the red stick)
Red stick will move to finger(working)
move finger. The red stick does not follow(not working)
Working sample
Take stick1 out of folder
run sample
put finger on large grey circle.
red stick moves with finger.
It's important that what is being pressed is the large grey circle and not the red stick. Pressing the large grey circle moves the stick to the finger and starts the drag and drop.