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