NPCs disappear when talking to Rolandienne

Platform: Windows
ISP: Suddenlink
Type of Internet Connection: DSL
Internet Connection Speed: 50Mb/s
Date & Time: 03/25/15 9:25AM CT
Frequency: Always- Exited dialogue repeatedly to reproduce
Character Name: Hellix
Race: ElvaanM
World: Quetzalcoatl
Main Job: RDM lvl 15
Support Job: DNC lvl 7
Area and Coordinates: Southern San d'Oria (G-10)
Party or Solo: Solo
NPC Name: Rolandienne
Monster Name: None
Steps:
1. Talked to Rolandienne
2. Dialogue starts and all NPCs and players in area except Rolandienne disappear from the screen
3. End dialogue and all NPCs and players in the area reappear