Describe the problem

Received an error while fighting Rukhmar in WOD

What steps will reproduce the problem?

1. Fight Rukhmar
2. Get fixated

What version of BigWigs are you using? (Stating 'latest' is not useful)

v185.4

Do you have an error log of what happened?

1x Found spell 'Fixate' using id 167757 on 0, tell the authors!
[string "@BigWigs_Core\BossPrototype.lua"]:1168: in function UnitDebuff' [string "@BigWigs_WarlordsOfDraenor\Draenor\Rukhmar.lua"]:64: in function ?'
[string "@BigWigs_Core\BossPrototype.lua"]:474: in function <BigWigs_Core\BossPrototype.lua:440>

Any additional information? (example: WoW language if not English) (Attach screenshots here if available, do not link externally)