Storyline 360 trouble with drag and drop changing which object is overtop of other objects.

Storyline 360 problem:  I have a learning activity with a mechanic like solitaire.  The cards all start in a hidden state with each one lower in the timeline than the next card to be drawn.  I have a draw pile (as a button) that will show a card by changing its state to normal and advance a card counter variable.  If the card can be played the learner drags it and drops in the correct spot.  If they drag it to the wrong spot, or if they drag it to the correct spot before it can be played, I use the zero-motion path trick to return it to the face up pile.  This works properly if the user does everything correctly.

My problem is that when a card is dragged and dropped on a wrong spot, any subsequent cards drawn appear below the card that was moved. 

When it works correctly clicking the draw pile shows the 3 diamond card that cannot be played yet, click the draw pile again and it shows the 3 heart card which also cannot be played, clicking a third time shows the 2 diamond card that can be played. 

This is how it fails: Click the draw pile shows the 3 diamond card, drag that card to any drop target shows a wrong layer, then zero distance motion path to put it back to the face up location, that part works.  Clicking the draw pile a second time will change the state of the 3 heart card but that card is below the 3 diamond card instead of above it (I made the 3 diamond card larger for troubleshooting).

The really odd thing is that if I move an incorrectly placed card back to the face up pile, subsequent cards will appear properly showing above the moved card.  For troubleshooting my 2 diamond card has a motion path with distance so I can drag it back, and it also works with just moving any incorrectly placed card from the face up pile and back to that same place.

I thought it might be a consequence of the zero-distance motion path so I tried adding that to all cards when timeline starts on the card, but that doesn’t fix it, they still show below the incorrectly placed card.

I would really appreciate it if someone could explain why this is occurring and how to fix it.  The real project is a serious professional learning activity, I copied the real slide to a new project and changed the names to cards to remove any potentially proprietary information.  Thank you.