Soil Moisture readings

Why doesn’t the amount of moisture added from Flex Irrigation change when you change the amount of time the zone runs in the schedule?

I changed the schedule for this zone from 20 minutes to 5 minutes but the amount of water added from Flex Irrigation didn’t change. I waited a few days for the schedule to run the zone at 5 minutes and checked the moisture table the next day but it still shows the same amount of moisture added when it had run for 20minutes.