I'm trying to get a plugin to work that syncs
Calibre 5.19 highlights to Readwise. It seems to do OK when the highlights on epub books are created in the Calibre Viewer. But for some reason
none of the highlights I've created in Kobo Aura ONE are visible in Calibre when I open the same book via Calibre View and so they are "invisible" for the plugin as well.
If I use the Annotations-plugin, it does find all the highlights from the connected Kobo device and adds them to the metadata of the book in my library - but still those highlights/annotations are not visible in the Calibre Viewer (as highlights).
How can I combine the in-device created highlights that the Annotation plugin finds with the highlights that Calibre Viewer creates? How can I keep highlights in epub files on the local library and the highlights in the epub files on the Kobo device in sync?