I too am having problems with Ubuntu 18.04LTS, running insync 1.4.8.37107
On my 64bit system, the tray Icon does not show but insync is running and it is syncing.
- I do not have or need sni-qt, I am running a GTK system, Ubuntu Mate.
- I have tried stopping and restarting.
- I don’t use exotic video cards or video drivers.
The legacy support for Tray Icons, down on lower left (fortunately) stopped after U17.
However, I do know that the way TrayIcons are show has changed. The gnomes of Gnome seem to have waged a war on TrayIcons and are not interested in supporting what they consider an “old” model. Perhaps one of them was frightened by a SystemTrayIcon when young ?
Ubuntu distros based on Gnome do however support the (now abandonded) Unity AppIndicator model.
Does this all mean that insync is not going to be upgraded to what Gnome finds 'acceptable" ?
(I’ll lay on the floor and kick and scream …)