Items in my inventory that had suddenly gone

[HansYang]

In progress quest: A Noble Nest
I collected the items needed for this quest.(Egg, golden fleece,ember...)
And passed over to the next quest. Now i have Fiery potion and Diamond glass. and where is the others? The other item are gone !!!
what's wrong?

[maguar]

I think you'll find that you used the diamond to make the diamond glass and the ember to make the fiery potion. Are you able to use this to finish the quest?