Problem when hierarchy of instantiated objects

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Hey newbie in photon here, i am making a phone game where i connect two players through the same wifi network, the problem is that each one of the players needs a reference to the other player but as they don't instantiate at the same time they don't get that reference in the hierarchy. I've tried setting those references in place when instantiating the second player with a punRPC function but doesn't work.

PD: It's kind of difficult to explain as English is not my main language, so feel free to ask more questions if you don't understand.