multiple quest item turn in yielding only one reward

[Verden]

Was just doing one of the spell trade-in quests in Firiona Vie and have before handed in 4 scrolls for 4 quest rewards at a time, but this time it when I handed in 4 scrolls it only gave me one scroll in return. The NPC I was questing with is named Barnal Flamehand.

[baalzy]

Be sure that the spells you're turning in are ones for the quest. Not all of the droppable spells from 51-54 can be turned in.

[Verden]

Before I handed them in I moused over each one and brought their names up, same spell names as what the NPC asks for.

[shdwdrake8]

I've had this happen with gnoll fangs. I'd turn in nothing but 4's and sometimes just get 1 exp message.