Monstrosity Lizard Monster Skill Plaguebreath displays incorrect help text

Platform: Windows
ISP: Comcast
Type of Internet Connection: Cable
Internet Connection Speed: 95Mbps
Date & Time: Nov. 24, 2015 14:15 MST
Frequency: Always
Character Name: Ryothen
Race: TarutaruM
World: Asura
Main Job: Lizard Lv. 50
Support Job: Ashen Lizard (BLM)
Area and Coordinates: Xarcabard, D-7
Party or Solo: Solo
NPC Name: None
Monster Name: Evil Eye
Steps:

1. After defeating a Demon Pawn in Xarcabard I leveled up to 50 and learned Plaguebreath
2. I opened up the Monster Skills menu to read the help text for Plaguebreath and see how much TP it would cost to use the skill.
3. I noticed the help text read: "Deals water damage to enemies within a fan-shaped area originating from caster. Additional effect: Silence."
4. Knowing that Plaguebreath, historically, has had an additional effect of poison instead of silence, I tested the move on an Evil Eye
5. I used Plaguebreath on an Evil Eye in Xarcabard and turned my Lizard monster around.
6. After about a minute, my log displayed "The Evil Eye is no longer poisoned."