After killing the ice dragon I returned to Garond and reported. After getting the exp for saying I killed the dragon the dialogue ended and Garond didn't say anything else. I talked to him again and there's no other dialogue option aside from "About the dragons..." where Garond just says there hasn't been any dragon attacks lately. I've talked to Oric as well and he doesn't say anything else to me.

I'm playing as a Dragon Hunter and I'm also using the L'Hiver mod.