[Koha-devel] Wide character error

I staged a record and it imported 100%. I can view it and can see a diacritic (650 7 _aHuérfanos) This record cannot be saved/edited. It gives the “Wide character” error. If I delete the field, it saves 100%. It is obvious that it is not a mysql problem, because it was imported correctly into the database. I tried my best to configure everything to be utf-8, but obviously something is wrong. Can someone please advise? Thanks