Scheduled Task Won't Backup

[tom-davies]

Running cd C:\restic\; . .\config.ps1; . .\secrets.ps1; & .\backup.ps1 runs the backup fine, but using the Task Scheduler, either by waiting for the scheduled task to start, or starting it manually doesn't.
The log reads
[[Internet]] Internet connectivity check disabled. Skipping.
The error log is empty

The repo is an SFTP, and the system .ssh folder (and files within) are set to be owned by SYSTEM