When a Paradox Clone of someone is made, the Synthetic trait is not applied. This is due to the trait not being present in the clone whitelist (why is it set up like this). There are likely other traits that are also not being appropriately applied when they should.
This is an easy fix by locating the .yml file where clones are defined and adding it to the whitelist, although not a long-term solution because the way that is set up is ridiculous. Reason I'm not doing it is to give somebody a chance at an easy beginner PR and I'm lazy.