Upon right clicking the 7z-file and selecting "Extract Here", the cursor changes to a progress animation. Nothing else happens, but the system becomes somewhat slow. Nautilus and gnome-shell processes will use a lot of CPU until I close Nautilus.
Here's what DOES work however:
- Extracting password protected 7z-files in the terminal.
- Extracting 7z-files without passwords in Nautilus.
- Extracting password protected rar-files in Nautilus.
Ubuntu version 17.10.