Device: LG G3 F400k
Rom: CM12 Nightly (12.1-20151004-NIGHTLY-F400)
Google App version: 184.108.40.206.arm
Google services version: 8.1.15 (2250156-230)
Google Play store version: 5.9.12
Everything seems up to date. But I don't have the options to use Ok Google on other screens/apps. And the hotword won't even work in the app itself.