well, no. Mine is working perfectly on LB. you might have wrong with somethig.The latest rom was not stable, here are the problems I encounter in this ROM.
* on locked bootloader i always got bootloop but on unlocked bootloader Im not getting bootloop, even though I followed the instruction in the OP.
*after uninstalling some apps then after reboot the apps that I uninstall is still there.
This rom is best stock rom for C6903 for now.