Seasonal shift

I have a Rachio timer and Seasonal Shift is activated. August 1 this feature implemented itself and notified me via email of the event.

However, when examining the watering times for zones on my irrigation system, after the shift occurred, no changes were made to the duration for any zone. In fact, the email notification explicitly showed the total program run time before and after the automatic shift - no change.

Seems incorrect. Am I missing something? Why were no changes made by way of the Seasonal Shift feature?