Right.
What I did:
Both mages were killing a mob, the zombie got agro and died, the leader finished off the mob.
Once the mob died the leader just stood still (didn't loot) and had this as the log:
[3:55:48 p.m.:421] [Navigator-WalkPath (Horde1-60.mesh)] Close enough to test with TraceLine. Regenerating path to find correct end node.
[3:56:18 p.m.:515] Need food.
[3:56:37 p.m.:296] Mana: 100 Resting Stopped
[3:56:37 p.m.:578] Check food and drinks.
[3:56:37 p.m.:593] CastSpellById: 1460
[3:56:39 p.m.:296] Took 1704 ms to cast:Arcane Intellect
[3:56:39 p.m.:515] Arcane Intellect
[3:56:39 p.m.:531] CastSpellById: 7301
[3:56:41 p.m.:218] Took 1703 ms to cast:Frost Armor
[3:56:41 p.m.:437] Frost Armor
[3:56:42 p.m.:750] [Navigator (Horde1-60.mesh)]: Changed destination! Last: <1962.718, -3032.49, 104.6444>, new: <1965.742, -2988.798, 103.9631>
[3:56:43 p.m.:812] interact: 0x1325D7F0
[3:56:44 p.m.:140] interact done: 0x1325D7F0
[3:56:51 p.m.:171] Bandera (0.35)
[3:56:51 p.m.:171] Killing Roaming Felguard at distance 22
[3:56:51 p.m.:187] Pulling Roaming Felguard
[3:56:51 p.m.:218] CastSpellById: 7322
[3:56:53 p.m.:218] Took 2000 ms to cast:Frostbolt
[3:56:53 p.m.:406] Frostbolt
[3:56:55 p.m.:734] Take first known target.
[3:56:55 p.m.:953] No target.
[3:56:56 p.m.:78] Take first known target.
[3:56:56 p.m.:859] CastSpellById: 7322
[3:56:59 p.m.:156] Took 2297 ms to cast:Frostbolt
[3:56:59 p.m.:406] Frostbolt
[3:56:59 p.m.:656] CastSpellById: 122
[3:56:59 p.m.:875] Frost Nova has been cast
[3:56:59 p.m.:890] Frost Nova
[3:57:01 p.m.:437] CastSpellById: 7322
[3:57:03 p.m.:140] Took 1703 ms to cast:Frostbolt
[3:57:03 p.m.:328] Frostbolt
[3:57:03 p.m.:718] CastSpellById: 7322
[3:57:06 p.m.:296] Took 2579 ms to cast:Frostbolt
[3:57:06 p.m.:828] CastSpellById: 7322
[3:57:07 p.m.:421] Took 594 ms to cast:Frostbolt
[3:57:08 p.m.:609] CastSpellById: 7322
[3:57:10 p.m.:312] Took 1703 ms to cast:Frostbolt
[3:57:10 p.m.:625] CastSpellById: 7322
[3:57:12 p.m.:328] Took 1703 ms to cast:Frostbolt
[3:57:12 p.m.:796] CastSpellById: 7322
[3:57:14 p.m.:406] Took 1609 ms to cast:Frostbolt
[3:57:14 p.m.:968] CastSpellById: 7322
[3:57:16 p.m.:312] Took 1344 ms to cast:Frostbolt
[3:57:16 p.m.:953] CastSpellById: 7322
[3:57:18 p.m.:671] Took 1750 ms to cast:Frostbolt
[3:57:19 p.m.:0] CastSpellById: 7322
[3:57:20 p.m.:796] Took 1797 ms to cast:Frostbolt
[3:57:21 p.m.:328] Movement: All
[3:57:22 p.m.:234] CastSpellById: 7322
[3:57:24 p.m.:828] Took 2594 ms to cast:Frostbolt
[3:57:25 p.m.:359] CastSpellById: 7322
[3:57:27 p.m.:937] Took 2609 ms to cast:Frostbolt
[3:57:28 p.m.:562] CastSpellById: 7322
[3:57:31 p.m.:250] Took 2688 ms to cast:Frostbolt
[3:57:31 p.m.:687] CastSpellById: 7322
[3:57:34 p.m.:234] Took 2547 ms to cast:Frostbolt
[3:57:34 p.m.:703] CastSpellById: 2137
[3:57:34 p.m.:890] Fire Blast has been cast
[3:57:34 p.m.:890] Fire Blast
[3:57:36 p.m.:406] CastSpellById: 7322
[3:57:36 p.m.:562] Took 156 ms to cast:Frostbolt
[3:57:36 p.m.:765] Frostbolt
It's "status" on the bottom of the HB window was "waiting for zombie".
As the zombie lay on the ground dead its's logs were:
[3:55:52 p.m.:312] [Navigator-WalkPath (Horde1-60.mesh)] Close enough to test with TraceLine. Regenerating path to find correct end node.
[3:56:09 p.m.:515] [Navigator (Horde1-60.mesh)]: Changed destination! Last: <1957.796, -3049.459, 104.9963>, new: <1965.742, -2988.798, 103.9631>
[3:56:10 p.m.:484] Need food.
[3:56:28 p.m.:421] Mana: 100 Resting Stopped
[3:56:28 p.m.:781] Check food and drinks.
[3:56:28 p.m.:812] CastSpellById: 1460
[3:56:30 p.m.:406] Took 1594 ms to cast:Arcane Intellect
[3:56:30 p.m.:453] Arcane Intellect
[3:56:30 p.m.:453] CastSpellById: 7301
[3:56:32 p.m.:31] Took 1578 ms to cast:Frost Armor
[3:56:32 p.m.:125] Frost Armor
[3:56:34 p.m.:609] Cannot loot this target. Blacklist.
[3:56:52 p.m.:31] CastSpellById: 7322
[3:56:54 p.m.:687] Took 2656 ms to cast:Frostbolt
[3:56:54 p.m.:718] Frostbolt
[3:56:55 p.m.:750] Combat Exception
[3:56:55 p.m.:781] Object reference not set to an instance of an object. - From: nqgysg4i at Styx.Bot.CustomClasses.Mage.IsApproaching() in c:\Documents and Settings\Stacey\Desktop\hb stuff2\CustomClasses\Mage.cs:line 2793
at Styx.Bot.CustomClasses.Mage.Combat() in c:\Documents and Settings\Stacey\Desktop\hb stuff2\CustomClasses\Mage.cs:line 1025
at (Object )
at Styx.Logic.Common.Combat.CustomCombat.CustomCombat.Combat()
[3:56:56 p.m.:203] No target.
[3:56:57 p.m.:421] CastSpellById: 7322
[3:56:59 p.m.:843] Took 2421 ms to cast:Frostbolt
[3:56:59 p.m.:906] Frostbolt
[3:57:00 p.m.:156] CastSpellById: 122
[3:57:00 p.m.:250] Frost Nova has been cast
[3:57:00 p.m.:250] Frost Nova
[3:57:02 p.m.:875] CastSpellById: 7322
[3:57:04 p.m.:921] Took 2047 ms to cast:Frostbolt
[3:57:04 p.m.:968] Frostbolt
[3:57:05 p.m.:281] Movement: All
[3:57:06 p.m.:187] CastSpellById: 7322
[3:57:07 p.m.:890] Took 1750 ms to cast:Frostbolt
[3:57:08 p.m.:484] CastSpellById: 7322
[3:57:10 p.m.:640] Took 2172 ms to cast:Frostbolt
[3:57:10 p.m.:937] CastSpellById: 7322
[3:57:11 p.m.:0] Took 63 ms to cast:Frostbolt
[3:57:11 p.m.:203] CastSpellById: 7322
[3:57:11 p.m.:250] Took 47 ms to cast:Frostbolt
[3:57:11 p.m.:578] CastSpellById: 7322
[3:57:11 p.m.:609] Took 31 ms to cast:Frostbolt
[3:57:12 p.m.:265] CastSpellById: 7322
[3:57:12 p.m.:296] Took 32 ms to cast:Frostbolt
[3:57:12 p.m.:687] CastSpellById: 7322
[3:57:12 p.m.:750] Took 63 ms to cast:Frostbolt
[3:57:13 p.m.:109] CastSpellById: 7322
[3:57:16 p.m.:93] Took 2984 ms to cast:Frostbolt
[3:57:16 p.m.:359] CastSpellById: 7322
[3:57:19 p.m.:359] Took 3000 ms to cast:Frostbolt
[3:57:19 p.m.:812] CastSpellById: 7322
[3:57:21 p.m.:890] Took 2093 ms to cast:Frostbolt
[3:57:22 p.m.:390] CastSpellById: 7322
[3:57:22 p.m.:421] Took 32 ms to cast:Frostbolt
[3:57:23 p.m.:15] CastSpellById: 7322
[3:57:23 p.m.:62] Took 62 ms to cast:Frostbolt
[3:57:23 p.m.:265] CastSpellById: 7322
[3:57:23 p.m.:312] Took 47 ms to cast:Frostbolt
[3:57:23 p.m.:640] CastSpellById: 7322
[3:57:23 p.m.:687] Took 47 ms to cast:Frostbolt
[3:57:24 p.m.:15] CastSpellById: 7322
[3:57:24 p.m.:62] Took 47 ms to cast:Frostbolt
[3:57:24 p.m.:703] CastSpellById: 7322
[3:57:25 p.m.:234] Took 531 ms to cast:Frostbolt
[3:57:25 p.m.:531] CastSpellById: 7322
[3:57:28 p.m.:453] Took 2922 ms to cast:Frostbolt
[3:57:28 p.m.:718] CastSpellById: 122
[3:57:28 p.m.:828] Frost Nova has been cast
[3:57:28 p.m.:843] Frost Nova
[3:57:31 p.m.:0] CastSpellById: 7322
[3:57:31 p.m.:31] Took 63 ms to cast:Frostbolt
[3:57:31 p.m.:78] Frostbolt
[3:57:31 p.m.:390] Movement: All
[3:57:32 p.m.:265] CastSpellById: 2137
[3:57:32 p.m.:328] Fire Blast has been cast
[3:57:32 p.m.:328] Fire Blast
[3:57:33 p.m.:640] No target.
[3:57:34 p.m.:500] I died.
[3:57:35 p.m.:984] Roaming Felguard is dead
[3:57:36 p.m.:421] No target.
[3:57:36 p.m.:687] [Navigator (Horde1-60.mesh)]: Changed destination! Last: <1965.742, -2988.798, 103.9631>, new: <1958.207, -3021.063, 105.3665>
[3:57:37 p.m.:187] Jump.
[3:57:37 p.m.:343] Try to strafe to unstuck.
[3:57:37 p.m.:343] Movement: Backward
[3:57:40 p.m.:125] Jump.
[3:57:40 p.m.:296] Try to strafe to unstuck.
[3:57:40 p.m.:296] Movement: Backward, StrafeLeft
[3:57:43 p.m.:78] Jump.
[3:57:43 p.m.:250] Try to strafe to unstuck.
[3:57:43 p.m.:250] Movement: Backward, StrafeRight
[3:57:46 p.m.:15] Jump.
[3:57:46 p.m.:187] Try to strafe to unstuck.
[3:57:46 p.m.:187] Movement: Backward
[3:57:48 p.m.:968] Jump.
[3:57:49 p.m.:156] Try to strafe to unstuck.
[3:57:49 p.m.:156] Movement: Backward, StrafeRight
[3:57:51 p.m.:937] Jump.
[3:57:52 p.m.:156] Try to strafe to unstuck.
[3:57:52 p.m.:156] Movement: Backward, StrafeRight
[3:57:54 p.m.:921] Jump.
[3:57:55 p.m.:109] Try to strafe to unstuck.
[3:57:55 p.m.:109] Movement: Backward, StrafeLeft
[3:57:57 p.m.:984] Jump.
[3:57:58 p.m.:218] Try to strafe to unstuck.
[3:57:58 p.m.:218] Movement: Backward
[3:58:01 p.m.:62] Jump.
The moment I hit release on the zombie, the leader started to move and attack the next mob, leading to these logs: (contining from the first lot)
[3:58:15 p.m.:484] Take first known target.
[3:58:15 p.m.:687] No target.
[3:58:16 p.m.:609] CastSpellById: 122
[3:58:16 p.m.:796] Frost Nova has been cast
[3:58:16 p.m.:796] Frost Nova
[3:58:18 p.m.:625] CastSpellById: 7322
[3:58:21 p.m.:250] Took 2625 ms to cast:Frostbolt
[3:58:21 p.m.:531] Frostbolt
[3:58:21 p.m.:906] CastSpellById: 7322
[3:58:24 p.m.:109] Took 2203 ms to cast:Frostbolt
[3:58:24 p.m.:515] CastSpellById: 7322
[3:58:24 p.m.:718] Took 203 ms to cast:Frostbolt
[3:58:25 p.m.:156] CastSpellById: 7322
[3:58:25 p.m.:359] Took 203 ms to cast:Frostbolt
[3:58:26 p.m.:46] CastSpellById: 7322
[3:58:26 p.m.:250] Took 235 ms to cast:Frostbolt
[3:58:27 p.m.:93] CastSpellById: 7322
[3:58:30 p.m.:234] Took 3141 ms to cast:Frostbolt
[3:58:31 p.m.:62] CastSpellById: 7322
[3:58:34 p.m.:250] Took 3219 ms to cast:Frostbolt
[3:58:34 p.m.:625] CastSpellById: 7322
[3:58:37 p.m.:796] Took 3188 ms to cast:Frostbolt
[3:58:39 p.m.:0] CastSpellById: 7322
[3:58:39 p.m.:656] Took 672 ms to cast:Frostbolt
[3:58:40 p.m.:109] CastSpellById: 7322
[3:58:40 p.m.:375] Took 282 ms to cast:Frostbolt
[3:58:41 p.m.:109] CastSpellById: 7322
[3:58:41 p.m.:312] Took 234 ms to cast:Frostbolt
[3:58:41 p.m.:828] CastSpellById: 7322
[3:58:44 p.m.:500] Took 2672 ms to cast:Frostbolt
[3:58:45 p.m.:671] CastSpellById: 7322
[3:58:48 p.m.:343] Took 2687 ms to cast:Frostbolt
[3:58:48 p.m.:750] CastSpellById: 7322
[3:58:51 p.m.:390] Took 2640 ms to cast:Frostbolt