Comment 14 for bug 1629715

installed (for testing purposes)

guiverc@d960-ubu2:/de2900/ubuntu_64$ sudo apt install 'usb-creator-kde=0.3.6~ppa1' 'usb-creator-common=0.3.6~ppa1'
...
guiverc@d960-ubu2:/de2900/ubuntu_64$ apt-cache policy usb-creator-kde
usb-creator-kde:
  Installed: 0.3.6~ppa1
  Candidate: 0.3.6
  Version table:
     0.3.6 500
        500 http://ftp.iinet.net.au/pub/ubuntu eoan/universe amd64 Packages
 *** 0.3.6~ppa1 500
        500 http://ppa.launchpad.net/wxl/staging/ubuntu eoan/main amd64 Packages
        100 /var/lib/dpkg/status

I ran at term

guiverc@d960-ubu2:/de2900/ubuntu_64$ usb-creator-kde
guiverc@d960-ubu2:/de2900/ubuntu_64$

USB-Creator-KDE opened & I used to write a recent lubuntu 19.10 daily to thumb-drive, no messages appeared in the terminal. I ejected the thumb-drive and it's currently undergoing 'check-disc-for-defects' on another box (& none were found!!)

I had no issues on my Lubuntu 19.10 primary workstation.