Azure Spatial Anchor - how to get sufficient environment data?

Question

I'm trying to build an AR Android application using Unity 2019.4.19f1 and Azure Spatial Anchor in order to save the anchors to the cloud.

I'm using the SpatialAnchorManager class given in the demo. Once the session is created and started, I Try saving a Prefab to the cloud with the following Method but the CloudManager.SessionStatus.RecommendedForCreateProgress never gets above 0.

protected virtual async Task SaveCurrentObjectAnchorToCloudAsync(GameObject spawnedObject)
    {
        CloudNativeAnchor cna = spawnedObject.GetComponent<CloudNativeAnchor>();

        // If the cloud portion of the anchor hasn't been created yet, create it
        if (cna.CloudAnchor == null) { cna.NativeToCloud(); }

        // Get the cloud portion of the anchor
        CloudSpatialAnchor cloudAnchor = cna.CloudAnchor;

        while (!CloudManager.IsReadyForCreate)
        {
            await Task.Delay(330);
            float createProgress = CloudManager.SessionStatus.RecommendedForCreateProgress;
            feedBack.text = $"Move your device to capture more environment data: {createProgress}";
        }
        bool success = false;

        feedBack.text = "Saving...";

        try
        {
            await CloudManager.CreateAnchorAsync(cloudAnchor);
            var currentCloudAnchor = cloudAnchor;
            success = currentCloudAnchor != null;

            if (success && !isErrorActive)
            {
                await OnSaveCloudAnchorSuccessfulAsync();
            }
            else
            {
                OnSaveCloudAnchorFailed(new Exception("Failed to save, but no exception was thrown."));
            }
        }
        catch (Exception ex)
        {
            OnSaveCloudAnchorFailed(ex);
        }
    }