Date & Time: 10 a.m. PDT, 2nd June 2018
Frequency: always
World name: Jenova
Character name: Kavan Longfellow
Class/Level: Fisher/67
Party or solo: Solo
In-game time: Dunno

Steps:
1. Fish at Nem Khaal
2. Catch a Grass Shrimp using Midge Larva
3. Open Fishing Log
4. Note that Grass Shrimp does not display as having been caught at Nem Khaal in the log.
Repeat Steps 2-4 as desired.

I took a screenshot, but can't find a way to upload that.
I also completely logged out & reentered the game. Still does not show Grass Shrimp as having been caught at Nem Khaal in the Fishing Log.