Tainacan and other encoding in file name

Some users want to upload files and the filename to be in Greek. In the pdf file type this is not possible.
The file is uploaded fine BUT when the admin tries to publish, the file inside tainacan back-end is “lost” and it only happens to pdf documents with greek in the file name
For example αρχείο.pdf
Any ideas?


Database must use collation


Hello and THANKS for the answer. In wp-confign I have this
“define( ‘DB_CHARSET’, ‘utf8’ );”
Should I attempt to do a convertion of the Database Character Set?