How to calculate the delays between the theoretical and real hours of trains - data_freshness output is only in base_schedule

[jbo-tech]

Hello,

I try to calculate the delays between the theoretical and real hours of trains.
So i try different endpoints to get the data:

https://prim.iledefrance-mobilites.fr/marketplace/v2/navitia/stop_points/stop_point%3AIDFM%3A22398/stop_schedules?data_freshness=realtime&until_datetime=20250127T180000&from_datetime=20250127T163000&

https://prim.iledefrance-mobilites.fr/marketplace/v2/navitia/stop_points/stop_point%3AIDFM%3A463228/departures?data_freshness=realtime&until_datetime=20250126T170000&from_datetime=20250126T073000&

https://prim.iledefrance-mobilites.fr/marketplace/v2/navitia/lines/line%3AIDFM%3AC01378/disruptions?count=50&data_freshness=realtime&

Even if there was disruptions, "realtime" doesn't seems to work and the output are still with "data_freshness": "base_schedule" flag.

Thank you in advance for the help.