Quest Issue: Scarlet Stone

[diabolica1]

Hi Guys,
I have camped the "a drolvarg scavenger" and spawned and killed 10 of them and the drops have been,
1 - blood soaked note, cash
2 - blood soaked note, cash
3 - blood soaked note, cash
4 - blood soaked note, cash
5 - blood soaked note, jade shard, words, cash
6 - blood soaked note, cash
7 - blood soaked note, cash
8 - blood soaked note, cash
9 - blood soaked note, words, cash
10 - blood soaked note, cash
and not one "Scarlet Stone". Can you guys look into this? I dont think on live the "blood soaked note" is a 100% drop and the "Scarlet Stone" is less than 10%, as I personally camped both on live and know this to be true. If anything I think the note was the rare drop not 100%, and the stone was 100% drop.
Thanks, Diabolica