Hi,
thansks for answering.
I have connected my kobo libra 2 to the PC -> calibre
Erased all books form device
Selected 20 epubs to copy into the device using Calibre
Ejected Kobo
Kobo did import
19 authors are so called ̛ !!!
I have visually checked my metadat plugboard, and it seems 'correct' to me

( and I have not altered it since new problem)
I have uninstalled the KoBo utilities, so keep is 'simpler'
Hope you can help me there
log file is attached