The question that has always bothered me is: after replicating your consciousness, which of the multiple instances of your consciousness is the real you?

This question is more relevant if the multiple instances are on separate machines that do not sync with each other, thus the instances will have different experiences, receive different information, and gain different knowledge.

Even if the machines hosting the different instances finally get synced, how do you reconcile conflicting information from the different instances?

How do you reconcile Arnold Schwarzenegger's Terminator from The Terminator (1984) with that from Terminator 2: Judgment Day (1991)?