Comment 2 for bug 1861068

There is no requirement that the versions match.

Please be sure you have free disk space available! Usually, you need a at least 25GB to customize an ISO. I've seen this issue in the past where Cubic is run in a VM without enough virtual disk space.

If you get the chance, please try the Development version, 2020.01-213, and let me know if you experience the same bug, with the exact same scenario you tested earlier.

    # Uninstall Release Version
    $ sudo apt autoremove --purge cubic
    $ sudo apt-add-repository --remove ppa:cubic-wizard/release

    # Install Development Version
    $ sudo apt-add-repository ppa:cubic-wizard/development
    $ sudo apt update
    $ sudo apt install cubic

I'll also try the 18.04.03 and 19.10.04 combination to see what's going on. If I need additional information from you, I'll let you know.