I cannot get the plugin InsertImageSVG to work correctly in Sigil 2.0.1. The plugin’s ‘Copy’ function fails to load an image into the clipboard.
It does work ok in the Windows version.
It looks like the plugin is unable to connect with the clipboard in the flatpak version. It needs to be able to use the system’s utilities xsel and xclip and I wonder if flatpak does not allow this?