Yep indeed it’s a current limitation of how UE4 handles non-native parent Components. What you CAN do to get around this in a Mod/Map, however, is Duplicate the Class in question, rather than create a Child of it (so for example create a Duplicate of Blueprint’/Game/PrimalEarth/Dinos/Raptor/Raptor_Character_BP.Raptor_Character_BP’ into your Mod, rather than a Child, and use that in your Mod/Map).
We’ll look into nativizing the CharacterStatusComponent reference (so that it can be modified in children), or providing a way to override the values of non-native parent Components, in the future however.
Cheers,