Battlefront

'Cannot see the file' bug.

I am playing a huge CMBN PBEM game with a fellow gamer on this site. Twice the following has happened. He sends me his turn via Dropbox and I copy it into the Game Files/Incoming Email folder. No problem so far. I boot up CMBN and open the Saved Games menu item. Surprise! The anticipated game turn is NOT there. It is not showing. The preceding turns are still showing. I go back and recheck the folder. It is there. Reloading and replaying plus reloading does not fix the bug.

Is anyone else experiencing this bug? What's going on?