If you're having issues with "The First Slayer" quest registering trophies, please feel free to write in via the in-game bug report option. We're trying to make sure we resolve any reports of it there within 24h. Then you can try again and it should work. If you prefer, you can also write in via the link below, but we feel in-game bug report will be easier for you. https://support.playdauntless.com/hc/en-us/requests/new Thank you!