error on PBEM replay

[krmiller]

The replay part is corrupted, been doing pbem for over 20 years and have run into this now and then, seems to be more often lately since many no longer zip game files with the larger attachment sizes allowed now. 
Occasionally the bte itself will get so corrupted either when being saved or in transit and won't even load.  That's why I create a folder for each opponent and store the game emails until we finish, if a problem develops we just back up a turn or two and replay those.
Also avoid opening more than one game/battle file at a time, this can confuse the pc as to which folder/file it is working in resulting in these kinds of problems.