My Training Status updates every morning...not after an activity? Why? Yesterday after a run I had a status of 733 but it didn't update until the morning and got the value 584 instead! Hoppens all the time. Frustrating.... The status is always lower than the real value.....
I think the contribution from workouts from 7 days previously get removed from your training load at midnight each day. So it will seem low until you go for a run/ride/whatever each day.