I have a 2018 Mac Mini with only 256gb internal SSD so I want to use the internal only for the boot drive, OS, apps and have all files on the external SSD. I formatted the SSD as APFS encrypted. Set a password and added to Keychain. I created a new User account to test this out moving the Home directory with everything Desktop, Documents, Downloads ect to the SSD. I then went to Users & Groups and changed the Home Directory path to the SSD and was prompted to restart. I can no longer log into this account as I get an error message. What am I doing wrong?