Cannot make GameObject hide when spawned by Tracked Image Manager

Target Platforms XR
, ,
1

Please pardon me as I am new to Unity. I have the simple setup of TrackedImageManager creating a Canvas (called Question) when the image is detected (pic1).

No matter what I do to try to hide it, it is there, I use roughly the code below to hide it:

private void OnTrackedImagesChanged(ARTrackedImagesChangedEventArgs eventArgs) {

        // Loop through all new tracked images that have been detected
        foreach (var trackedImage in eventArgs.added) {
            // Get the name of the reference image
            var imageName = trackedImage.referenceImage.name;
            Debug.Log("Added image name: " + imageName);
        }

        // For all prefabs that have been created so far, set them active or not depending
        // on whether their corresponding image is currently being tracked
        foreach (var trackedImage in eventArgs.updated) {
            var foundCanvasObjects = FindObjectsOfType<Canvas>();
            var imageName = trackedImage.referenceImage.name;
             if (trackedImage.trackingState != TrackingState.Tracking)
             {
                GameObject canvas = GameObject.Find("Question");
                if (canvas == null)
                    Debug.Log("didnt get panel GAME OBJECT");
                else
                {
                    Debug.Log("Hiding: " + canvas.ToString());
                  
                    canvas.gameObject.SetActive(false);
                    //DestroyImmediate(canvas.gameObject);
                }
             }
        }

        // If the AR subsystem has given up looking for a tracked image
        foreach (var trackedImage in eventArgs.removed) {
            var imageName = trackedImage.referenceImage.name;
            Debug.Log("DELETING IMAGE NAME: " + imageName);
        }
    }

Now how do i know it is still there? I take the camera off screen and simply take a side glance. Example here demo.mp4

9284068--1300948--pic1.png

2

If the Canvas is the child of the trackedImage game object, try to change line 18 to this:
var canvas = trackedImage.GetComponentInChildren<Canvas>();