Just moved onto the Moto G from a couple of Huawei devices, G300 then Y300... (bye bye Modaco!) - So I'm pretty used to flashig, wiping etc using TWRP and CWM...
Anyhow, got the Moto G (XT1033), booloader unlocked, done a full restore to clean 4.2 and let it update to 4.4 fine, no problems.
Installed the latest CWM, got root, all fine... again, no problems...
But EVERY rom I try - slim, CM11, always install OK but on booting come up with phone process failures and I have to abandon.
I tried putting the 422 modem zip from the CM11 thread on, made no difference.
So I've rewiped back to stock and updated to 4.4.2, and flashed CWM, but still can't install a custom rom, getting the phone process error on startup.