Welcome to our forums, glad to have you around.
Sorry to hear about your missing trophy.
We can try verifying the integrity of files since it usually helps, but coming from a server transfer one would think it’s necessary to look into those logs.
So, just in case, log out of steam, run it as an administrator, log in, select New World from your library, select properties and verify the integrity of game files.
If it doesn’t do the trick, please contact live support. You can use this link: Contact Us | Amazon Games