Description
When a BlueprintCallable function returns a TArray of TSubclassOf(MyType), the nativization tries to manage it as a TArray of UClass*, thus failing to assign it to a variable.
How to reproduce
- create a new c++ blank project
- create a new c++ class (i used a StaticMeshActor as parent, but it’s the same)
- create a new function in the newly reated class as this one:
.h file
// Fill out your copyright notice in the Description page of Project Settings.
#pragma once
#include "Engine/StaticMeshActor.h"
#include "MyStaticMeshActor.generated.h"
/**
*
*/
UCLASS()
class NATIVETESTING_API AMyStaticMeshActor : public AStaticMeshActor
{
GENERATED_BODY()
UFUNCTION(BlueprintCallable, Category = "Test")
TArray<TSubclassOf<AMyStaticMeshActor>> Test();
};
.cpp file
// Fill out your copyright notice in the Description page of Project Settings.
#include "NativeTesting.h"
#include "MyStaticMeshActor.h"
TArray<TSubclassOf<AMyStaticMeshActor>> AMyStaticMeshActor::Test()
{
return TArray<TSubclassOf<AMyStaticMeshActor>>();
}
- now create a blueprint with the c++ class as parent, and create these nodes (note the variable type)
- set nativization as inclusive, and package the project, it will fail.
Explanation
It generates this code
in .h the variable is declared as
TArray<UClass*> bpv__NewVar_0__pf;
Note that the type is wrong.
in the .cpp it tries to assign it with:
b0l__CallFunc_Test_ReturnValue__pf = AMyStaticMeshActor::Test();
that obviously fails.
Expected behaviour
The generated code should remain true to the variable / return type, so use a TArray of TSbuclassOf instead of TArray of UClass*
Hope this helps 
Simone Daminato