Rat Race (Nashmau quest) bug

[Johnb]

Thread Title:
Can't progress through Nashmau Rat Race quest

Platform:
Windows 7 (PC)

ISP:
AT&T U-verse

Type of Internet Connection:
DSL

Internet Connection Speed:
21.91 MB/s download speed, 1.97 MB/s upload

Date & Time:
1/11/15 12 PM PDT

Frequency:
State how frequently the issue occurs. Please select from the following.
Always

Character Name:
Johnb

Race:
Race of your character when the issue occurred.
Hume M

World:
Bismarck

Main Job:
NIN 91

Support Job:
DNC 45

Area and Coordinates:
Nashmau H-7

Party or Solo:
Solo

NPC Name:
Kyokyoroon

Monster Name:
None

Steps:
I was doing the Rat Race quest. I traded the required fish to Ququroon to get the Nashmau Stew. Then, to progress through the quest, I tried to trade the Nashmau Stew that was previously given to me by Ququroon to Kyokyoroon but no cutscene or quest progression happened. I did not buy this Nashmau Stew from Auction House. I still have the quest activated. I also talked to the end NPC (Kakkaroon) and tried trading the stew to him but it didn't end the quest.