This thread is for device specific shakeout and bug fixing.
This is not a production build.
Please always supply a system log (logcat) and a kernel log (kmsg) when reporting an issue.
Please read through the entire blog post:
Please take note of the 'Known Issues'.
SELinux will be kept in permissive until shakeout is nearing completion and then will be switched to enforcing and further remediation (if any) will be performed.