c# - Filename is garbled

Question

I have a c# program that reads through directories and copies selected files. It works fine 99.9 pct of the time, but occasionally the filename is garbled (and as far as I can tell, the length return is incorrect).

If I rerun, the file is usually found correctly

The file is on a network drive, so I suspect that the network is part of the problem. Can anyone think of a reason for this, or at least a way of detecting a problem before trying to copy the file? I'm finding the files with a Directory.Enumerate command, and the directory is found without any problem.

An example of the filename is }{~{}{}�{~�_�����}��_��}�~_�{}��}�}{�}}���.���, whereas it.s a .zip file with usual English characters.

Thanks for any advice.

Here is a code snippet:

var txtFiles2 = Directory.EnumerateFiles(_subDir); 
LoggerHelper.Debug(logger, "Dir {0}", _subDir); 
foreach (string f2 in txtFiles2) 
{ 
  LoggerHelper.Debug(logger, "DB1: FileName {0}", f2); 
  FileInfo fi = new FileInfo(f2); 
  LoggerHelper.Debug(logger, " File {0}", fi.Name); 
}