Also getting this.

17306x Kui_Nameplates/plugins/tankmode.lua:124: Usage: GetRaidRosterInfo(index)
[string "=[C]"]: in function GetRaidRosterInfo' [string "@Kui_Nameplates/plugins/tankmode.lua"]:124: in function func'
[string "@Kui_Nameplates/messages.lua"]:163: in function <Kui_Nameplates/messages.lua:145>
[string "@Kui_Nameplates/messages.lua"]:208: in function <Kui_Nameplates/messages.lua:185>

Locals:

This was while in Heroic+ CoS and watching the NPCs kill the zombies and fleeing townsfolk as the group formed up.