The link is copied correctly to the clipboard, but the notification is not shown. Restarted both insync and Thunar, one more time, just in case, but the notifications are really not shown anymore. Previous insync-thunar version did show the notifications.
Just emailed you ~/.config/Insync. Ops, just realized now that I didn’t include a link to your post, but I identified the issue number (918) in the Subject. Let me know if you can’t find it and I’ll send it again, including the link.
To make sure the issue was reflected in the logs, I copied a private link with Thunar before sending them.
So, we’ve just concluded that insync is not showing any notifications under Xubuntu 15.04.
Any way I can configure insync to generate debug information, perhaps setting some environment variable? I could run it that way, and then recreate a scenario where a notification should be shown, so you might have adequate information to debug the issue?