Copy agent running twice at start up in Xubuntu

Session and Startup > Application Autostart only shows one CopyAgent
I've tried deactivating autostart and deleting the entry in the list of autostart applications but nothing of that works.

I solved it inspired in
http://www.linuxquestions.org/questions/slackware-14/cairo-dock-starts-twice-912331/#post4892788
1) Close both instances of CopyAgent (click on the icon > Quit)
2) Go to Settings > Settings Manager > Session and Startup > General : make sure "automatically save session on logout" is off
3) rm ~/.cache/sessions/x*
4) reboot

Thank you Hector! This solution solved it for me, too! ;)

It solved it for me as well - for 24 hours. Now the starting twice has returned. Not sure the solution survived a power off restart. I will try again.

I think could it be xfce issue, i'm on Archlinux with xfce and also I'm suffering that problem.

Copy was discontinued on May 1, 2016.

Status changed to 'Confirmed' because the bug affects multiple users.