Assume you have 1 object that has the drag n drop movement active. Now while at runtime create a few more instances of the object on the same positions as the original object (the new instances overlap the original object)
all instances have the drag and drop movement , but if the user taps the phone screen to move the object he sees ( the one on top of the others) the drag and drop behaviour applies to the instance of the object with the lowest fixed id instead (the one created at first) not the one that is on top of the others.
You have an object number 1
A new object instance is created on top of it , they have the same x,y
(object no 2 is overlapping object no 1, the user sees only object no 2 )'
The user taps his finger to move the object no2
object no1 is moved instead of object 2 which is on top of object no1
This bug only present when running on phones OR when using the pc and using the mutitouch object thus it is clearly a bug of the multitouch object .
The drag and drop works corrently when running on pc (that means you drag and drop what is on top)