Dear,
I use 4 devices (2 Kobo Glo HD v4.15.12920 and 2 Kobo Clara HD v4.20.14622) with the same unexpected behavior.
When I fill-in the "Authors" field in Calibre like this :
- Name, FirstName (same that the field "AuthorSort", see below the picture with the example in Calibre)
in the Readers (Clara or Glo) one author become 2 authors.
I don't know how resolve this issue. It's perhaps a "bug" during the transfer or in the Kobo Firmware. Could you help me ?
Thanks in advance.