Moving windows to another workspace with mouse right-click is broken on some applications

When running Gnome Classic on Ubuntu 16.04 you could move a window to another workspace by right-clicking on the Window, and you would get a menu supporting the move.

When running Gnome Classic on Ubuntu 18.04 the workspace options on the right-click menu has disappeared from many but not all applications.

* Gnome-Terminal - OK
* Nautilus - FAIL
* gedit - FAIL
* FireFox - FAIL.

If you select a window and press Alt-Space, the menu with workspace options appear.
If you try to move a window to another workspace using keys it works.

I expect the right-click menu to supply the same options as Alt-Space
Now the right-click menu does not supply workspace options.
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Description: Ubuntu 18.04.4 LTS
Release: 18.04

gnome-terminal:
  Installerad: 3.28.2-1ubuntu1~18.04.1
  Kandidat: 3.28.2-1ubuntu1~18.04.1
  Versionstabell:
 *** 3.28.2-1ubuntu1~18.04.1 500
        500 http://se.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     3.28.1-1ubuntu1 500
        500 http://se.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

gedit:
  Installerad: 3.28.1-1ubuntu1.2
  Kandidat: 3.28.1-1ubuntu1.2
  Versionstabell:
 *** 3.28.1-1ubuntu1.2 500
        500 http://se.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     3.28.1-1ubuntu1 500
        500 http://se.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

nautilus:
  Installerad: 1:3.26.4-0~ubuntu18.04.5
  Kandidat: 1:3.26.4-0~ubuntu18.04.5
  Versionstabell:
 *** 1:3.26.4-0~ubuntu18.04.5 500
        500 http://se.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:3.26.3-0ubuntu4 500
        500 http://se.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

firefox:
  Installerad: 80.0.1+build1-0ubuntu0.18.04.1
  Kandidat: 80.0.1+build1-0ubuntu0.18.04.1
  Versionstabell:
 *** 80.0.1+build1-0ubuntu0.18.04.1 500
        500 http://se.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
        100 /var/lib/dpkg/status
     59.0.2+build1-0ubuntu1 500
        500 http://se.archive.ubuntu.com/ubuntu bionic/main amd64 Packages