Mob reset & linked "orange" mobs not becoming "red

Was in a duo PT fighting bats in the new level 15 dungeon outside LL. I would provoke pull a bat +1 link. After killing the first (Red) bat the linked (orange) wouldn't turn "red" when the mob would reach ~1/4 HP it would reset back to its original position.

Platform:
Windows 7 64-bit
ISP:
Comcast

Type of Internet Connection:
cable

Internet Connection Speed:
20Mbit/s

Date & Time:
11/6/11 ~6:00am PST

Frequency:
State how frequently the issue occurs. Please select from the following.
Always


Character Name:
Chief Currahee

Race:
Lalafell M

World:
Melmond

Class/Skill Rank:
Gladiator level 20

Physical Level:
lol wut? time to update your template to v.1.19

Area and Coordinates:

Party or Solo:
Party

Monster Name:
Dark Bat



Steps:
1) Provoke mob (comes with 1 link)
2) pull mob back out of "link range" but well within mobs roaming boundries
3) attack and kill "red" claimed bat
4) engage linked "orange" bat
5) damage bat to ~1/4 remaining HP
6) watch bat fly back to starting position

also problem with this is: that you lose TP (TP regen down)

Greetings, ChiefCurrahee!
Thank you for posting your concerns about mob behavior. I have made sure to submit all of your information to the development team, and they will make sure to thoroughly investigate this matter, based on your report. Unfortunately, I cannot guarantee that a direct response will be posted on this thread, but I do recommend checking here or here for any details regarding the development team's investigation. Thanks again for your report!