Good morning!
Thank you very much for the development of kepubify, I use it regularly to read epubs of books that I have in paper version.
It sometimes happens to me that certain kepubs are not detected by the kobo clara hd even though the epub file is detected.
When I unplug the kobo I see the import progress bar and it disappears and the kepub book is not present.
I don't know why, does the kobo generate a log file to undertand what appends during the importation?
I can send you an epub for the example.