[ExecuteAlways] doesn't work in Unity 2021.3.1f1 (LTS)?

I have this simple code on a Cube in a newly created 3D template scene in Unity 2021.3.1f1 (LTS), I have also activated Always Refresh in the scene viewport but the cube is only moving when I click the mouse button in the scene view or sometimes when I move the mouse over an editor element (but only somethimes). What is going on here?! This works with no problem in 2020.3.23f1 for instance. Is this a bug or some sort of "performance feature" that I need to disable somewhere? But I can't find any settings for scene view update or refreshing.

Code (CSharp):

1. using UnityEngine;
2.  
3. [ExecuteAlways]
4. public class Demo : MonoBehaviour
5. {
6.     void Update()
7.     {
8.         transform.position = new Vector3(0.0f, 1.5f + Mathf.Sin(Time.time), 0.0f);
9.     }
10. }

 

Okey, I have replaced the "complex transform" with a Debog.Log(), but it is the same result, if I move the mouse around over the editor UI it sometimes calles update, like once per minute or something like that (I didn't actually time it, I just gave an example of how infrequent it happens) or it is being called when I click the mouse button in the scene viewport. I have been doing these kinds of things in Unity since version 2018, so something must have changed or there is a bug?. Here is the new code I'm using, I'm hoping this one isn't too "complex" for Unity to handle as well.

Code (CSharp):

1. using UnityEngine;
2.  
3. [ExecuteAlways]
4. public class Demo : MonoBehaviour
5. {
6.     void Update()
7.     {
8.         Debug.Log("Update being called.");
9.     }
10. }

 

I tried forcing the repaint but it makes no difference.

Code (CSharp):

1. using UnityEngine;
2. using UnityEditor;
3.  
4. [ExecuteAlways]
5. public class Demo : MonoBehaviour
6. {
7.     void Update()
8.     {
9.         Debug.Log("Update being called.");
10.         SceneView.RepaintAll();
11.     }
12. }

I've tried with both RepaintAll() above and below the Debug.Log() code line, it makes no difference.

Interesting side note though: every time I recompile this script the editor deactivates the scene view button "Toggle skybox, fog and various other effects". But whether this option is on or off doesn't matter, the results are still the same.

 

I tried [ExecuteInEditMode] instead of [ExecuteAlways] just to check, but it is the same issue.
Please let me know when you hear from the editor team, so I know whether I need to file a bug report or not

As I said, this has been working for me with no issues, whatsoever, for the past tree years, at least, and I have been using code like this for countless scripts.

Thanks for your help! @MelvMay

 

I just tried your code in 2020.3.23f1 and it works like a charm. Magic!

 

I tried adding that editor code on a separate gameobject in the scene to handle all scene updates and that seems to work as a workaround.

Like so:

Code (CSharp):

1. using UnityEngine;
2. using UnityEditor;
3.  
4. public class SceneRepaint : MonoBehaviour
5. {
6.     void OnDrawGizmos()
7.     {
8. #if UNITY_EDITOR
9.         // Ensure continuous Update calls.
10.         if (!Application.isPlaying)
11.         {
12.             EditorApplication.QueuePlayerLoopUpdate();
13.             SceneView.RepaintAll();
14.         }
15. #endif
16.     }
17. }