Can't wait for the next build!I think its kernel issue, I will make more tests when I got the device in my hand!
I think data on pie are read only, that why it fail to boot.
Log path is not correct will fix it soon.
Next build will fix SEANDROID ENFORCING warning.
I think it's worth mentioning that I have tried all of the below ROMs and kernels but none of them worked as a secondary ROM only the internal boots everytime:
I tried a RR all versions, Linage OS 14 15 &16 with stock kernels , smartpack and boffela... All the combinations failed to boot into secondary ROM with seandroid kernel warning.