Swap Test And Practice Questions By Drag And Drop

I created a module in the platform before the update to DominKnow One that had drag and drop questions in it. I've copied those question pages into a new layout since and they don't seem to be working now. I've compared my settings and they are the same as the previous project (nothing looks wrong) but when I go to drag the elements into the drop target, it's like a magnet rejecting the same pole. 
Is anyone having this issue?
I've also tried restarting DK One. 
Thanks in advance! Kim
 

How do I add new drag elements and drop targets to a Categorization question? Do I just add new shapes to the page and then identify those as drop targets? If so, is there any way to rename the added shapes to make them easier to identify? Or am I missing something and going in the wrong direction entirely?

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