I leave my phone at home after comeback from work it turn back to 36.0210.1420.27Maybe try turn off auto update and w8 for new about new FW.Ps.36.0210.1420.27 didt reboot on me yet.
My Rog 8 pro has this same problem when it was charging problem stop or use durable mode with powerbank.(Mine was update last night reboot happen at work,13/3/2569 From Thailand)I wish Asus do rollback or do some thing like hotfix becuz befor update...