Drag and drop, back to the initial position when drop zone incorrect

Hello everyone,

I have a problem with a freeform drag and drop question whit the option of resent incorrect drop.

I created only one drop zone correct in which some items could be dropped in this zone. Furthermore, I selected the option-question "resend to the initial position, when the item is dropped outside the correct drop zone". After that, I created feedback layers (positive + negative) when the user drop an item in the zone.

Unfortunately, since I created the feedback-layers, the option-question is obsolete and the incorrects items stay in the drop zone... 

Could someone help me?

Thanks a lot!!!!