Support for 4.4 is planned. But it's not possible until I have 4.4 device as GB module became really huge. It's now basically a non-flashing custom ROM with more than 40000 lines of code. Impossible to work on it without a device.
However, I would be at least curious to see a debug.log if somebody already tried in on 4.4. New framework makes debug.log sharing more easy.
running stock KitKat + GravityBox
GravityBox app - Xposed module for devices running vanilla Android
Please, do not use personal messages when trying to solve your problems. Use forum - its power is often underestimated. If I can't help somebody else will certainly try to. Thanks.
If you like my work, consider buying me a coffee.