A Chinese language user reported problems with folder names outputting wrong name if there are mixed characters (Chinese + latin). This is caused by encoding and PHP basename(), which might fail if encoding does not match locale. I already looked into this, and the solution seemed to be to force UTF-8, already added to index.php:

setlocale(LC_ALL,'en_US.UTF-8');

However, this does not always seem to solve the problem. There is another solution, that simply users a different function to extract the basename of a path. Find the following in index.php (currently around line 432):

function _basename($path){
  return basename($path); // because setlocale(LC_ALL,'en_US.UTF-8')
  // OPTIONAL: replace basename() which may fail on UTF-8 chars if locale != UTF8
  // $arr = explode('/', str_replace('\\', '/', $path));
  // return end($arr);
}

Comment out the first line, and un-comment the two bottoms lines:

function _basename($path){
  // return basename($path); // because setlocale(LC_ALL,'en_US.UTF-8')
  // OPTIONAL: replace basename() which may fail on UTF-8 chars if locale != UTF8
  $arr = explode('/', str_replace('\\', '/', $path));
  return end($arr);
}

The above function will use a different method to extract the basename of the path.