How can we send voids to the bank when our checks are not printed locally?

We recently switched from printing our checks locally, to sending an electronic Check Print file to JP Morgan, and having them print the checks. Since we installed this change, the Create Positive Pay File scheduled job we have, setup to pull and send the voids to the bank, no longer pulls the voids. It is only pulling voids for checks that were created prior to the change, i.e. it only pulls voids for checks that were printed locally, not for those that have been sent to the bank for printing.

How can we get our Create Positive Pay File voids job to pick up voids for checks not printed locally?