My LED control seems not to work properly, which is weird to me as nobody complained

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e.g., when I set the color for battery charging to white and plug the charger in, the LED turns on and it is white. But when I lock the phone (by power switch) after approx. 2 secs the LED goes off. When I unlock the phone, it goes on again in white, but then turns orange (default system) or it's orange right away.
I tried to update the Light Manager to the latest version (5.0) - flashed via CWM, clean the application data (in Settings -> Apps -> All), no luck.
Other applications (e.g., "Blink - Flash LED in Your Way", "LED Blinker") also seem not to work properly. Also, I get fc of the "Settings app" when I select Settings -> LED control

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Could you point me where could be the problem? I'm not 100% sure but I think it's since a clean ROM install (ftf stock .587 (without kernel)-> Revolution 8.0).
LWW/Revolution 8.0/Kappa 1.7b1
Thanks a lot for any hints.