Drag & Drop reset between attempts

I have a Storyline 1 Drag & Drop.  All 4 items need to be placed on the drop target for it to be correct.  The user has 3 attempts.   I can't get all 4 items to reset to their initial location after each attempt.    Suggestions please?  I am sure I have neglected some variables....but I don't understand them enough to correct the problem.

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