WowAce

What steps will reproduce the problem?
1. I entered a low level instance (can't remember which one)
2.
3.

What is the expected output? What do you see instead?

What version of the product are you using?
v4.0.0-beta19-10-g9c54002-nolib

Do you have an error log of what happened?
4x PitBull4_ThreatLine-r7\ThreatLine.lua:318: Usage: UnitDetailedThreatSituation("unit" [, "mob"])
PitBull4_ThreatLine-r7\ThreatLine.lua:318: in function <PitBull4_ThreatLine\ThreatLine.lua:264>
(tail call): ?:
PitBull4_ThreatLine-r7\ThreatLine.lua:453: in function `GetValue'
PitBull4-v4.0.0-beta19-10-g9c54002\ModuleHandling\BarModules.lua:49: in function <...erface\AddOns\PitBull4\ModuleHandling\BarModules.lua:39>
PitBull4-v4.0.0-beta19-10-g9c54002\ModuleHandling\BarModules.lua:427: in function `UpdateFrame'
PitBull4-v4.0.0-beta19-10-g9c54002\ModuleHandling\Module.lua:319: in function `Update'
PitBull4-v4.0.0-beta19-10-g9c54002\ModuleHandling\Module.lua:398: in function `UpdateAll'
PitBull4_ThreatLine-r7\ThreatLine.lua:440: in function `?'
CallbackHandler-1.0-6 (Ace3):147: in function <...Ons\Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:147>
<string>:"safecall Dispatcher[1]":4: in function <[string "safecall Dispatcher[1]"]:4>
<in C code>: ?
<string>:"safecall Dispatcher[1]":13: in function `?'
CallbackHandler-1.0-6 (Ace3):92: in function `Fire'
AceEvent-3.0-3 (Ace3):120: in function <Ace3\AceEvent-3.0\AceEvent-3.0.lua:119>

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Please provide any additional information below.

Moved to the pitbull4_threatline project since it's not part of the PitBull4 distribution.