Why is Unity Addressables not working when I build to Windows or Android?

  addressables, asset-management, unity3d, windows

I have recently switched my Unity project to use the Addressables system to improve asset load speed. Everything works perfectly when I run in Unity playmode, however ONLY when I go to build to Windows or Android (it builds as "successful") but it appears the asset keys just fail to load when running in the build.

*I am using Unity Beta 2021.0.1.0b2 but have tried on the earlier releases.
*My asset is marked as "Addressable" and the addressable is named correctly.
*I "Default Build Script" before I deploy.
*I have tried multiple times even reinstalling Unity and built to both Windows and Android.
*Addressable settings have been "Pack together" and "Pack Separately".

Here is a simplified version of the script (with the exact same error)… that just loads and instantiates an Addressable-marked gameobject (with a UI image attached) from my asset folder onto the canvas when a button is clicked. As per above, this works perfectly in Unity playmode, but fails when I build.

What am I doing wrong? I have been stuck on this for some time now and would really appreciate any help….!

[SerializeField] Button bttn;
[SerializeField] Transform spawnPos;

private void Awake()
{
    this.transform.Find("Bttn").GetComponent<Button>().onClick.AddListener(() => LoadPicture());
    spawnPos = this.transform.Find("SpawnPos");
}

private void LoadPicture()
{
    Addressables.LoadAssetAsync<GameObject>("Drink").Completed += drink =>
    {
        if(drink.Status == AsyncOperationStatus.Succeeded)
        {
            GameObject go = drink.Result;
            GameObject g = Instantiate(go, transform.position, transform.rotation);
            g.transform.SetParent(spawnPos, false);
        }
        else
        {
            Debug.Log("Load Failed");
        }
    };
}

Source: Windows Questions

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