Party member coordinates desync in dungeon instance

[Gaarv]

Time: September 1, 2013 around 03:00PM GMT+2
Frequency: Twice, in differents instances and days
World name: Hyperion
Character name: Val Gaarv
NPC name: N/A
Monster name: N/A
Class/Level: Conjurer/19
Party or solo: Party
In-game time: Unknown
Area and coordinates: Copperbell Mines (happened in Satasha the day before too), like 5 minutes inside both times
Steps:
1. Get into dungeon via Duty Finder as Healer
2. Start the instance, kill a few monsters (5-10). Everything is fine.
3. A random member seems then "stuck" in one place. I can see him using skills, HP is going down and up but he doesnt move at all. I can target him as long as I stay in range where he's "stuck". Others members does not have the issue and see him fine.
4. Log out of the game
5. Log in back in the game
6. Member can be targeted and move as normal

Latency was good at this time and the fact that login back into the game fixed the issue looks like a bug, maybe induced by Duty Finder load.

Connection Specs
- Type of internet connection/provider : DSL+
- Modem maker/model number : N/A (box provider)

Model Number of the PlayStation 3 You Are Using
- Model Number: CECHKxx


Edit : found a non-solved closed bug thread describing the exact same symptoms http://forum.square-enix.com/ffxiv/t...-bug-%28PS3%29
And another one : http://forum.square-enix.com/ffxiv/threads/73062-Party-Members-Disappeared-in-Haukke-Manor