Wyverns in Dynamis

Problem:
Beastman wyverns in Dynamis are glitchy. Bodies do not disappear when defeated.

I was fighting a DRG that had the body of the wyvern lying on the ground. When it used Call Wyvern, no wyvern was summoned.

Platform:
Windows

ISP:
Charter

Type of Internet Connection:
CATV

Internet Connection Speed:
30 Mb/s

Date & Time:
Since Neo-Dynamis came out. Let's say 3/6/13 if you want a specific date. Multiple other occasions.

Frequency:
When I go in to Dynamis, I often see dead beastmen wyverns lying on the ground.

Character Name:
Thoraeon

Race:
Hume M

World:
Siren

Main Job:
DNC

Support Job:
THF

Area and Coordinates:
Places I often see the ghost wyvern:
Dynamis-Buburimu (I/J-8) (K-9) (H-8)
Dynamis-Valkurm (D/E-7) (G-8)
I remember seeing it in other dynamis as well, but cannot remember locations off the top of my head.

Party or Solo:
Solo
Party (Mcclane, Begonia)

NPC Name:
None

Monster Name:
DRG that did not summon wyvern: Vanguard Partisan (Dynamis-Valkurm D-7)
Seeing dead wyverns regardless of what I am or am not fighting.

Steps:
1: Enter Dynamis
2: Walking around doing Dynamis-ish related activites
3: See dead wyverns

1: Fight Vanguard Partisan
2: Vanguard Partisan uses Call Wyvern
3: Vanguard Partisan was completely abandoned when its wyvern did not come to its aid.
4: Killed the Vanguard Partisan