Context:
I have a script that contains a list of serializable classes following this structure:

[Serializable]
class Test
{
public string name;

public Test()
{
name = "Test";
}
}

[Serializable]
class Test1 : Test
{
public string different1;
public Object sameName;

public Test1()
{
different1 = R.integer.ToString();
name = "Test 1";
}
}

[Serializable]
class Test2 : Test
{
public string different2;
public Object sameName;

public Test2()
{
different2 = R.integer.ToString();
name = "Test 2";
}
}

When the class type Test 1 and Test 2 are created, their name is set to "Test 1" and "Test 2" respectively, also note that the class Test1 has a property "different1" and Test2 has "different2". This means that it is impossible in the UI to have for example Test1 with the property "different 2" and vice versa.

Repro steps:
- Open the repo project
- Open the SampleScene scene
- Select the "List" GameObject, the list should be empty
- Enter in play mode, this will fill the list with random values
- Reorder some element in the list and look at the property name "Different 1" and "Different 2"
- Observe that all the data is moved correctly except the properties Different 1 and Different 2.

What I think is happening:
I think the data of the object is swapped but not its type which explains why the "different 1" and "different 2" properties can't be re-ordered but the rest of the values are re-ordered when we move an element from place x to y.

Alternatively, you can put the script TestList.cs in an already existing unity project to repro