Why is my list scrolling super fast after scene change.

[lavizp]

I have setup a circular scroll in my main menu, The canvas for the main menu is saved as a DontDestroyOnLoad to save menu properties. When I change my scene and change back to the menu while playing the game, I reassign the main camera through script:
canvas.GetComponentInParent<Canvas>().worldCamera = Camera.main;
After that, the list scrolls super fast, no errors are thrown. Please let me know if I can fix this bug.

[LanKuDot]

Hi, the list stores the referencing camera of the canvas in the initialization.
And the list uses it to calculate the local position by calling RectTransformUtility.ScreenPointToLocalPointInRectangle(), which the null reference of the camera parameter is acceptable. That's why there has no error.
But it will treat the canvas that it is in the screen space - overlay mode.
Therefore, you also have to reassign the camera into the list.

Try this:

1. At the line 47 in the ListPositionCtrl.cs, remove readonly keyword from the _canvasRefCamera.
2. Add a new function to the ListPositionCtrl.cs:

public void SetCanvasRefCamera(Camera camera)
{
    _canvasRefCamera = camera;
}

3. Add a new function to the CircularScrollingList.cs:

public void ReassignCanvasRefCamera()
{
    GetComponentReference()
    _listPositionCtrl.SetCanvasRefCamera(_canvasRefCamera);
}

4. Then, call CircularScrollingList.ReassignCanvasRefCamera() after you assign the camera to the canvas.

[lavizp]

Thank you so much, you are a genius,