I encountered a problem after upgrading to High Sierra. I have a mobile hard drive which is NTFS formatted (USB 3.0).
When I connect my hard drive to the computer, it doesn't appear in Finder. It can be found in the Disk Utility but it is grayed out. Mobile hard disk is working properly because in other windows computer connection is fine, before the upgrade (macOS 10.12) can also be displayed in finder.
Hardware: MacBook Pro 13 2017 16 GB RAM & 256 GB SSD without Touch Bar.