Hey @Asnyder, Shared iPad does have some device requirements. Make sure
the device you are using is supported: Any iPad Pro iPad 5th generation
iPad Air 2nd generation or later, with at least 32 GB of storage iPad
mini 4th generation or later, with a...
"macOS has been patched to counter the chip design blunder since version
10.13.2, according to operating system kernel expert Alex Ionescu." -
Source Also: https://twitter.com/aionescu/status/948609809540046849
Update: Official statement from Apple