Comment 31 for bug 1754301

Joe,

Do the paths you are using have spaces?

If so, I think you may be affected by bug #1761320 Cubic does not mount original ISO when the path has spaces.

I just posted a fix in the *Development* branch. See if that helps?

    # Remove Cubic
    $ sudo apt autoremove --purge cubic

    # Remove the *Release* repository
    $ sudo apt-add-repository --remove ppa:cubic-wizard/release

    # Add the *Development* repository
    $ sudo add-apt-repository ppa:cubic-wizard/development

    # Install the *Development* version of Cubic
    $ sudo apt update
    $ sudo apt install cubic