I am running on Kubuntu 17.04 and when I click anything on the tray icon, nothing happens.
Primarily, I can’t get the app window to show. I see nothing in the logs when I do this, it just doesn’t respond.
@Gary_Terry: Is Insync using a lot of CPU? It might be stuck on some operation. You can also try stopping Insync and running it with insync start --no-daemon to see if there are any messages that stand out. You can also turn on debugging with insync start --debug 1 --no-daemon.