The purpose of a split stay
free dining reservation is to pay for a room only reservation (no package with tickets and dining) for 1 to 3 nights and pay out-of-pocket for your meals before the free dining dates, so as to be able to have a free dining PACKAGE for the rest of your length of stay on your second reservation. To get the dining plan you must be booked with a Magic Your Way package that includes room tickets and dining.
If you booked two separate packages with room tickets and dining, that would negate the savings of a free dining discount, as the free dining prom requires a minimum 2 day base ticket purchase.
Your check in date is 4 days before the free dining promo starts, so really, it's not really a plausible scenario in your situation, as you can only pick up your package tickets 3 days early.