Yesterday there were some issues with a payment provider, a lot of orders with payment_status INPROGRESS. Those orders keep their timeslot locked, so when the payment issues were fixed it was still impossible to order for most timeslots because we have the limit set at 3. I temporarery raised the limit to get all running again.
Today again someone with issues locked a certain timeslots 2 times. Order status is NEW, payment_status INPROGRESS. I was able to free the timeslots by deleting some entries in the wppizza_orders_meta table.
Is this a bug or by design? What is the best way to free up the locked timeslots?