@Lee_Cason I apologize for not getting back to you sooner.
We are currently investigating some issues with the tray icon not showing on GNOME 3.26+ (i.e., Ubuntu 17.10 default). Some users have reported success with sni-qt installed as well as using the TopIcons Plus GNOME extension.
If you wish to try the headless interface in the meantime, here is the documentation: How to control Insync via command line (CLI)