How does TArray keep references? My custom container is getting it's elements garbage collected

[Doug_Richardson]

@Marc_Audy

TArray only works when marked as a UPROPERTY, and in those cases the reflection system does handle it for you.

Sorry to necropost, but is this still true? The Garbage Collection documentation says:

One practical implication here is that you typically need to maintain a UPROPERTY reference to any Object you wish to keep alive, or store a pointer to it in a TArray or other Unreal Engine container class.

This doesn’t explicitly say a TArray member itself needs to be a UPROPERTY. The or store a pointer to in in a TArray part implies that simply storing it in any old TArray (marked UPROPERTY or not) is sufficient to prevent elements from being GC’d. That said, there appears to be nothing inside the TArray itself that knows about GC, so it appears that the UPROPERTY reflection macro is still required.