It's a grub issue. After downgraded grub(2.02-2ubuntu8.15 -> 2.02-2ubuntu8) and shim(15+1533136590.3beb971-0ubuntu1 -> 13-0ubuntu2), can't reproduce this issue 4.15.0-1081-oem (0/10)
It's a grub issue. 02-2ubuntu8. 15 -> 2.02-2ubuntu8) and shim(15+ 1533136590. 3beb971- 0ubuntu1 -> 13-0ubuntu2), can't reproduce this issue
After downgraded grub(2.
4.15.0-1081-oem (0/10)