Hey,
i *just* fixed this problem by incorporating this hack:
https://stackoverflow.com/questions/23140358/php-glob-directory-utf8
I added this (https://pastebin.com/pMWEFsu7) file as ‘inc.utf8.php’ in file-away/lib/inc/
and changed file-away/lib/inc/inc.file-array.php to this (https://pastebin.com/1GLqhB4V).
For thomstark: I changed lines 3, 22 and 23 in inc.file-array.php, please consider adding that code to your plugin for us european folks in ümlautl?nd.