Patch 1.01 is out!!!

[FragerZ]

It means you must manually save during the command phase of a PBEM game, THEN patch, THEN load the saved, finish the turn, and send it. I tried to simply install the patch and load a PBEM file, and the game freezes and crashes continuously.

So you either need to wait and do this for all of your PBEM games at once, or set up a different .exe and do them at your convenience.