When you go to Automate > Batch and choose the destination Folder, the file browsers brought up by the Choose menus to select the Source and Destination folders are sorted differently. The Source lists numbers by their first digit (so it's file1.psd, file10.psd, file2.psd) and the Destination lists numbers bey their last digit (so it's file1.psd, file2.psd, file3.psd). This isn't a big deal for doing batches within simple file structures, but it can be confusing when working with a more complex project since the folders are listed in a different order (which can have disastrous results if you make a mistake and don't have a backup!).
I've been automating batches for years, and this is a weird little glitch that I'd love to see sorted out. Thanks!