You should follow my way to prevent problems with apps or later updates
Because of the disabled SELinux in @GeeckoDev's war kernel r1 preview you can't go back to my kernel or update the rom to 20151030 (you will get many fc's and/or missing data in apps).
The only way to fix it is:
boot to recovery-flash back my kernel-reboot the recovery(important!)-factory reset-do a clean install of the rom +gapps again
To avoid problems, the flash of the r1 war must be done immediately after a clean installation of your NightOwl rom
With SELinux disabled on r1 war It not recommended to go back on bauner kernel without a clean installation