I want to sync a folder which has the owner:group root:system and the permissions drwxrwxr-x (775). I've edited /lib/systemd/system/resilio-sync.service to run sync as user:group rslsync:system. I've edited /etc/passwd so tha the user rslsync has the group system. I've made a systemctl daemon-reload and a systemctl restart resilio-sync. Sync runs but won't write to the folder and says it has no permission. When I login as user rslsync I can obviously write to the folder