This has been an issue for a very long time on the blue server, I'm not sure what causes it. I believe it's still possible for certain high level greens (non-undead) to aggro as well.
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Project 1999 (PvE):
Giegue Nessithurtsithurts, 60 Bard <Divinity>
Starman Deluxe, 24 Enchanter
Lardna Minch, 18 Warrior
Project 1999 (PvP):
[50 (sometimes 49) Bard] Wolfram Alpha (Half Elf) ZONE: oasis |