[il_mix]

Ok, the thread title is quite confusing... I'll explain in detail.
I have several book series where the books have no actual title. As an example, I have a "My hero saga" series, where all the books are called "My hero", and can be discriminate by the series index.
I've read and tested several paths to edit the title when uploading on the device (Kobo Touch) via Metadata Plugboard. The title will actually be changed on the device (e.g., on the device I read "02 - My hero" as title, correctly stored in "My hero saga" shelve), BUT sending a new book from the same saga will overwrite the one on the device, although on the device the title changes. I've underlined "on te device" since on Calibre, in device library view, the book is listed with the original title "My hero", not "02 - My hero". Mayyyyybe that's the problem.

Now, I can easily bypass the problem by changing the title in Calibre to "My hero 1", "My hero 2", ... But I prefer, if possible, to maintain the title "clean" and let the send function do the dirty work.

Side note, as stated in some similar thread I've opened, this WORKED in the past, I'm sure of this. Don't know what happened on the device firmware side, driver side or Calibre side.

Any hint?