Hi scotttracker and welcome back to the forum!
Have a look at this GitHub issue, the Gnome Software error is identical, altough the person reporting the issue was able to update via Gnome Software (no loop was experienced).
This thread seem to have a possible solution: fwupd fails to/very slow to start with Logitech G610 keyboard · Issue #2047 · fwupd/fwupd · GitHub