So, im doing the dragonrod quests, and i came across a quest called "entrance examination", wich is asking to kill fire dragons to get fire dlower bags. the thing is, they are not droping it.
My question is, is the quest bugged or am i doing everything wrong? If its bugged is there any way to progress the quest line?

thanks
eventually while doing other quests i found the right mobs. But the description was really missleading