“Maximum Order Deliveries” count don’t update

We can testing the “Maximum Order Deliveries per day” function, but we found a bug. At the beginning, we set a the delivery day on 28 Sep, 2023. As we set the max order per day is 1, that date become unavailable. Then, we change the delivery day to another date of the order detail on our backend, but the date of 28 Sep, 2023 haven’t become available.

Is the system have not update the data, even the delivery have been change? Can you help me solve this issue?

The page I need help with: [log in to see the link]