hello 
it’s mostly for network, but apparently can be used in non network. i think you need to actually set the owner to the object.
a quick duckduckgo search lead me here [Resolved] making an object visible to only a certain camera - #15 by Brain_DeadXX
in your specific case, i’d set the owner to the player controller, or pawn. but if that doesn’t work you can try what the linked post says