If there's a missing reference, the Unity inspector will show it as "Missing (Type)". Full Inspector shows it as "None (Type)", so it's not possible to visually differentiate between a missing (broken) reference and one that's simply not referencing anything.
If there's a missing reference, the Unity inspector will show it as "Missing (Type)". Full Inspector shows it as "None (Type)", so it's not possible to visually differentiate between a missing (broken) reference and one that's simply not referencing anything.