@davesbrew - I see you have 'Together Forever' meaning you completed Far Cry 5, so I've added the items for you in Far Cry New Dawn.
@MaterialSlinky1 - I see both items on your account. Let me know if you have any further troubles!
@dancinginfans - I do not see 'Together Forever' on your account, so I'm not able to add this content.
I'm also having the same issue as everyone else on this thread. I beat Far Cry 5 on the Xbox, started a new game, and then synced my Ubisoft account, so I understand why I don't have the Sin Eater(its ok, I don't really want it). I did some things on the new game, including liberating Dutchs Island, but it still says I haven't beat it on Far Cry New Dawn(which I have on PS4). How do I fix this?