WowAce

What steps will reproduce the problem?
1. Run EnsidiaFails as one of the tanks
2. One of them fail the switch.

What is the expected output? What do you see instead?
No fails posted.

What version of the product are you using?
r254

Do you have an error log of what happened?
29x LibFail-1.0-254 (EnsidiaFails):679: Usage: UnitIsUnit("unit", "otherUnit")
LibFail-1.0-254 (EnsidiaFails):679: in function `func'
LibFail-1.0-254 (EnsidiaFails):763: in function <...AddOns\EnsidiaFails\Libs\LibFail-1.0\LibFail-1.0.lua:759>

Please provide any additional information below.
It seems to work when I run EnsidiaFails as another role (healer fx).
I never get fails recorded when I'm on my tank.