Question MutableRuntimeReferenceImageLibrary: track images added at runtime

I'm having trouble with MutableRuntimeReferenceImageLibrary and getting the tracked images. I'm using this coroutine for adding images

private IEnumerator AddAllImagesToMutableReferenceImageLibraryAR(MutableRuntimeReferenceImageLibrary mutableLibrary)
{
if (m_TrackedImageManager.descriptor.supportsMutableLibrary)
{
Texture2D textureImg = Resources.Load("qr1") as Texture2D;
JobHandle job;
if (textureImg.isReadable)
{
string name = "qrcode1";
job = mutableLibrary.ScheduleAddImageJob(textureImg, name, 0.1f);
yield return new WaitUntil(() => job.IsCompleted);
}
textureImg = Resources.Load("qr2") as Texture2D;
if (textureImg.isReadable)
{
name = "qrcode2";
job = mutableLibrary.ScheduleAddImageJob(textureImg, name, 0.1f);
yield return new WaitUntil(() => job.IsCompleted);
}

m_TrackedImageManager.enabled = true;
m_TrackedImageManager.referenceLibrary = mutableLibrary;
m_TrackedImageManager.trackedImagesChanged += OnTrackedImagesChanged;

}
}

and then this code for scanning the images

void OnEnable()
{
m_TrackedImageManager.trackedImagesChanged += OnTrackedImagesChanged;
}
void OnDisable()
{
m_TrackedImageManager.trackedImagesChanged -= OnTrackedImagesChanged;
}
private void OnTrackedImagesChanged(ARTrackedImagesChangedEventArgs e)
{
UpdateTrackedImages(e.added);
UpdateTrackedImages(e.updated);
}

private void UpdateTrackedImages(IEnumerable trackedImages)
{
var trackedImage =
trackedImages.FirstOrDefault(x => x.referenceImage.name == "qrcode1");
var trackedImage2 =
trackedImages.FirstOrDefault(x => x.referenceImage.name == "qrcode2");

if (trackedImage)
{
CorrectMsg.SetActive(true);
WrongMsg.SetActive(false);

}
if (trackedImage2)
{
WrongMsg.SetActive(true);
CorrectMsg.SetActive(false);
}
}

When I had a non-rutime library I had no trouble with it scanning the images. Now, I'm not even sure if the images are added. How can I know if the problem is with adding the images or with scanning them?

Does anyone have any suggestions?

thank you in advance