Mike We'll take a look.
OK - so your window is 00:00 - 23:59. The issue with this is that when the new rates are available, they are only available until 23:00, so therefore the full window is not available for population.
We run into other issues if we use partial windows for population.
I would suggest you change the window to something like 22:30 - 22:29 and see how you go at the population of the new Agile rates at 16:15.