AssetReferenceT<T> does not show up in inspector Unity 2020

Generic serialization has been added to Unity 2020. But AssetRefrenceT does not show up in the inspector. Why?

To be more exact, This does not work:

public class A : ScriptableObject
{
    public AssetReferenceT<AudioClip>[] Sounds;
}

But this works:

public class A : ScriptableObject
{
    public B[] Sounds;
}

// B.cs
public class  B : AssetReferenceT<AudioClip>
{
// constructor
}

Are you using Addressables 1.13.1? The changelog for that version says they added serialization support for it.

Maybe that’s because you are using an array? (I never tried this, still on 2019 LTS)