SensorKit: didFetchResult not being called

Hello, I have an app for a research study that has been approved and authorized to use SensorKit. All my permissions, entitlements and authorizations are in order, but I still can't get any data. The didFetchResult is not being called even though didCompleteFetch is called. I have waited for over 24 hours, but it still returns no samples. Please, I would appreciate any help on this issue. Thank you

    func sensorReader(
        _ reader: SRSensorReader,
        fetchingRequest: SRFetchRequest,
        didFetchResult result: SRFetchResult<AnyObject>
    ) {
        receivedResultsInCurrentFetch = true

        print("✅ SensorKit fetch result received for: \(sensorKey)")
        AppLogger.shared.log("SensorKit fetch result received for \(sensorKey)")

        if let sample = result.sample as? T {
            print("✅ SensorKit sample matched expected type for \(sensorKey): \(T.self)")
            AppLogger.shared.log("SensorKit sample matched expected type for \(sensorKey): \(T.self)")
            processSample(sample)
        } else {
            print("❌ SensorKit sample did not match expected type for \(sensorKey): \(T.self)")
            AppLogger.shared.log("SensorKit sample did not match expected type for \(sensorKey): \(T.self)")
        }
    }

    func sensorReader(_ reader: SRSensorReader, didCompleteFetch request: SRFetchRequest) {
        if receivedResultsInCurrentFetch, let lastRequestedUpperBound {
            session.setSensorKitLastFetchTime(lastRequestedUpperBound, for: sensorKey)
            print("✅ SensorKit fetch completed with samples for \(sensorKey). Checkpoint updated.")
        } else {
            print("⚠️ SensorKit fetch completed for \(sensorKey) with no samples.")
            AppLogger.shared.log("SensorKit fetch completed for \(sensorKey) with no samples. Keeping previous checkpoint so delayed SensorKit data is not skipped.")
        }

        isFetchInFlight = false
        completePendingFetches(success: true)

        print("✅ SensorKit fetch completed for: \(sensorKey)")
        AppLogger.shared.log("Fetch request completed for sensor type: \(T.self)")
    }