I have found that after upgrading from Ubuntu GNOME 16.04.1 with GNOME 3.20 to Ubuntu GNOME 16.10 with GNOME 3.22 that if I go into a USB and click the Nautilus button to "Move to Wastebasket" that it doesn't actually appear in my Wastebasket. If I then click the Undo button that comes up with the notification of the action in Nautilus, nothing happens. This is a before and after from the tree -a command:

Before:

    /media/<username>/<usb-name>/
    ├── 123
    │   ├── IMAG4613.jpg
    │   └── IMAG4617.jpg
    └── .Trash-1000
        ├── files
        └── info

    4 directories, 2 files

After:

    /media/<username>/<usb-name>/
    └── .Trash-1000
        ├── files
        │   └── 123
        │   ├── IMAG4613.jpg
        │   └── IMAG4617.jpg
        └── info
            └── 123.trashinfo

    4 directories, 3 files

This is the case with all my USBs, but what is interesting is that I tried using Dolphin instead of Nautilus to bin the files and it worked using Dolphin, but I believe only because it moved it to
the Trash of the actual system, rather than using the Trash system local to the USB.

But this has become rather annoying to me as I can no longer delete files on USBs unless I enable the immediate permanent removal button or cut and copy them over to my system to deal with them there.

I originally reported this issue here: https://bugs.launchpad.net/ubuntu-gnome/+bug/1651086 But thought I should also do so upstream.