Saw this when the module activated:

"BigWigs: Invalid spell ID 138375 in the toggleOptions for module BigWigs_Bosses_Jin'rokh the Breaker.
BigWigs: Module "Jin'rokh the Breaker" tried to register an invalid spell id (138375) to event "SPELL_DAMAGE".

I also got this in BugSack:

1x Invalid spell ID 138375 in the toggleOptions for module BigWigs_Bosses_Jin'rokh the Breaker.
BigWigs_Core\Core.lua:526: in function <BigWigs_Core\Core.lua:457>
BigWigs_Core\Core.lua:546: in function SetupOptions' BigWigs_Core\BossPrototype.lua:212: in function <BigWigs_Core\BossPrototype.lua:194> [C]: ? ...ceBigWigs\Libs\AceAddon-3.0\AceAddon-3.0-12.lua:70: in function <...ceBigWigs\Libs\AceAddon-3.0\AceAddon-3.0.lua:65> ...ceBigWigs\Libs\AceAddon-3.0\AceAddon-3.0-12.lua:527: in function <...ceBigWigs\Libs\AceAddon-3.0\AceAddon-3.0.lua:520> (tail call): ? BigWigs_Core\Core.lua:107: in function <BigWigs_Core\Core.lua:105> BigWigs_Core\Core.lua:118: in function <BigWigs_Core\Core.lua:114> BigWigs_Core\Core.lua:124: in function <BigWigs_Core\Core.lua:122> BigWigs_Core\Core.lua:138: in function <BigWigs_Core\Core.lua:133> BigWigs_Core\Core.lua:142: in function v'
BigWigs_Core\Core.lua:43: in function <BigWigs_Core\Core.lua:40>

Also seeing this one on Jin'rokh the Breaker:
"1x Found spell 'Focused Lightning' using id 137422 on 6, tell the authors!
BigWigs_Core\BossPrototype.lua:1096: in function UnitDebuff' ...\BigWigs_MistsOfPandaria\ThroneOfThunder\Jinrokh.lua:107: in function ?'
BigWigs_Core\BossPrototype.lua:431: in function <BigWigs_Core\BossPrototype.lua:397>

Locals:
InCombatSkipped"

And this one. Same encounter:

"1x Found spell 'Ionization' using id 138732 on 6, tell the authors!
BigWigs_Core\BossPrototype.lua:1096: in function UnitDebuff' ...\BigWigs_MistsOfPandaria\ThroneOfThunder\Jinrokh.lua:180: in function ?'
BigWigs_Core\BossPrototype.lua:431: in function <BigWigs_Core\BossPrototype.lua:397>

Locals:
InCombatSkipped"