UserAgent: Mozilla/5.0 (Linux; Android 8.1.0; TA-1004 Build/OPR1.170623.026) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.91 Mobile Safari/537.36

Steps to reproduce the problem:
1. Update to the latest beta
2. 
3. 

What is the expected behavior?
I can log in

What went wrong?
Login screen shows for a second or so. After that login process crashes and the screen turns black. This is the loop. I cannot initiate power wash or rollback. I can click toolbar if I am fast and it works, but system crashes anyway.

Did this work before? Yes Previous beta

Chrome version: 68.0.3440.91  Channel: stable
OS Version: Latest beta
Flash Version: