Systemd and insync-headless

Hi! I’m trying to run insync-portable with systemd. For some reason, the log info (that I usually get on stdout with insync-portable start --no-daemon) do not print to syslog. I have the following insync.service:

[Unit]
Description=Insync Google Drive Sync
After=network.target auditd.service local-fs.target
[Service]
Type=simple
User=khusmann
Group=khusmann
ExecStart=/opt/insync-portable/insync-portable start --no-daemon
Restart=always
RestartSec=3
StandardOutput=syslog
StandardError=syslog
[Install]
WantedBy=multi-user.target

Does the insync app somehow detect if it is running outside a terminal and disable the stdout logs or something?

Tagging our engineer @jimperio and he will get back to you.