A month ago, my application was able to retrieve activities from Strava using the URL /activities/{activityId}. However, it simply stopped working at the end of the year. I am receiving many "Activity id not found" errors. I saw the news about Strava's new policies, but our app is part of the majority that would not be affected by Strava's policy changes, as we only receive the athlete's activities via webhook for registration and analysis purposes by the athlete and coach. Does anyone know what might be happening?