I have problems recording video using any of the other third party camera apps i've tried (eg. Open Camera) on any of the KK builds (I tried Slim, PA, Spirit and Nameless). When I hit record it takes maybe 5 seconds to start recording, and sometimes it does work, but not consistently. If it works then only the first time, if i start recording again, sometimes it will record but the image will be static while recording, but more often than not the app just crashes.
Playback works fine on the recordings that are recorded if the app doesnt crash.
Camera function also works fine.