@macn00b Please show the commands you are using to enable FileVault with fdesetup.
Some usage of fdesetup has deprecated in macOS Catalina 10.15
See lines below
FileVault & fdesetup changes – FileVault FV2 now requires User-Approved MDM Enrollment or UAMDM. You also can’t pass username/password authentication to fdesetup enable. These changes may break existing scripts, workflows or MDM agents. Be sure to check man fdesetup in 10.15 beta to read more about the new Authorization policy. You will need to follow at least one path to use fdesetup to enable FileVault Encryption.
