The bug is not limited to Ubuntu MATE 16.04 LTS or its Caja file manager, as GVFS is an open-source software used by numerous projects, including but not limited to the popular Nautilus file manager used by default in any GNOME-based GNU/Linux distro, such as Ubuntu, Ubuntu GNOME, and Fedora Linux. If you want to help the Ubuntu MATE devs fix that pesky bug affecting Ubuntu MATE 16.04 LTS (Xenial Xerus), you’ll have first to make sure you have all the latest updates installed. Then, create two folders on your desktop, put a large file over 1GB in one of them, cut it with CTRL+X and paste it in the empty folder with CTRL+V.