Just now this bug appeared on Ubuntu 16.04. Probably due to an update.. Info (output trimmed):
$ dpkg-query -s nautilus Version: 1:3.18.4.is.3.14.3-0ubuntu5 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1322925 Title: Copy, cut, and paste in Nautilus fail in certain circumstances To manage notifications about this bug go to: https://bugs.launchpad.net/nautilus/+bug/1322925/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs