Inkscape extension can't find '__main__' module in ~/

[kjcole]

I have Inkscape 1.2.2-2ubuntu12 (from http://apt.pop-os.org/ubuntu noble/universe) and visicut 2.1+devel-1 (from a Debian package downloaded from your web site this morning, 2026-06-05). No snap, flatpak, appimage or PPA involved.

After installing the Inkscape extension and verifying that yea, verily, they are freshly installed in ~/.config/inkscape/extensions/, I get the following error when attempting Extension -> Lasercut Path -> Open in VisiCut:

"Inkscape has received additional data from the script executed.
The script did no return an error, but this may indicate the results
will not be as expected"

/usr/bin/python3: can't find '__main__' module in '/home/...'

(Also Lasercut Path shows duplicate sub-menu choices: Add to VisiCut and Open in VisiCut both appear twice.)