OC is very picky about it's config.plist. Make sure you include everything in the correct order.
Tonight my hack is busy running some things in windows, when I get a chance I will compare with my OC EFI.
Which version of OC are you running?
I was able to use it to configure the lights on my Corsair K95 RGB Platinum and my Corsair M55 RGB Mouse.
A lot less options under MacOS compared to Windows, but does the basics that most people would use it for.
Anybody who needs that kind of power has moved to AMD, you get all that plus PCie 4.0. Intel was caught napping by AMD and will take awhile to catch up. Nobody knows what Apple will do/support this next year, if you need a hack now with lots of power go with the coffee lake Z370/90 setup.