None of the PDF files can be viewed or downloaded after Upgraded to OJS 3

Hi @asmecher,

I have the same problem. I have upgraded from 2.4.6 to 3.0.1. the file name I have got in my files/journals/[journal_number]/articles/[article_number]/public/ is 300-1694-1-PB.pdf
Are we restricted in filenames?

Regards
Ghazal