GAS, A subclass of `UAttributeSet` inherits from its parent class, but the attributes of the subclass cannot be displayed in the GameplayEffect editor.

Development Programming & Scripting C++
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I inherited from UAttributeSet and created a class called Class A, where I added an attribute “a”. This attribute “a” is visible in the GameplayEffect editor.

However, when I further inherit from Class A to create Class B, the attribute “a” in Class B is not visible in the GameplayEffect editor. The editor only shows the attribute “a” from Class A and does not show the one in Class B.

Why does this happen?

I want to add different child Sets and modify attributes with the same name in different Sets.