Setting localPosition doesn't update until NEXT FRAME, but reports updating immediately

Unity Engine
1

I am having trouble activating an inactive gameobject using SetActive() & then changing its Transform, during the same frame.

        GOB.SetActive(true);
        GOB.transform.GetChild(0).localPosition = new Vector3(0, 0, 0);
        GOB.transform.GetChild(0).localScale = new Vector3(1, 1, 1);

Here is a step-by-step of what happens.

        Debug.Log("Setting Active & localPosition & localScale");
        GOB.SetActive(true);
        Debug.Log("Name: " + GOB.transform.GetChild(0).name);
        Debug.Log("localPosition: " + GOB.transform.GetChild(0).transform.localPosition);
        Debug.Log("localScale: " + GOB.transform.GetChild(0).transform.localScale);
        GOB.transform.GetChild(0).localPosition = new Vector3(0, 0, 0);
        GOB.transform.GetChild(0).localScale = new Vector3(1, 1, 1);
        Debug.Log("new localPosition: " + GOB.transform.GetChild(0).transform.localPosition);
        Debug.Log("new localScale: " + GOB.transform.GetChild(0).transform.localScale);
  • Log: Function was Called
  • The GOB is set as active right when this is called.
  • Log: Correct GOB is being altered.
  • Log: Old Position is correct (y = 50)
  • Log: Old Scale is correct (xyz = 1.2)
  • y = 0
  • xyz = 1
  • Log: New Position is correct (y = 0)
  • Log:New Scale is correct (xyz = 1)
  • Actual Transform is Old Position, Old Scale
  • On NEXT FRAME, GOB has New Position/Scale

I had the same problem when Instantiating GameObjects. They would Instantiate at one position, then not update until next frame. This causes the Unity UI icons to warp/flicker (ugly animation- the player can notice this happening).

To fix this when Instantiating, I simply used Instantiate(GOB, NewPosition), avoiding setting the Position entirely.
However I can’t do this when activating a GOB with SetActive().

I don’t believe I used to have this problem with Unity (ex. Unity 4).
Currently using Unity 5.3.6f1.

2

Solved this with what I tried earlier (but was targeting the wrong gameobject- dur).

Placed the transform change first.

        GOB.transform.GetChild(0).localPosition = new Vector3(0, 0, 0);
        GOB.transform.GetChild(0).localScale = new Vector3(1, 1, 1);
        GOB.SetActive(true);

However, I’d like to know why this is happening. Especially when the logs report it DOES change the exact same frame that it’s activated.

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