Well, this is most bizarre.
I've never had this happen before but I'm actually getting a crash to desktop when I tried to load the latest save received from mc-red.
I have absolutely no idea what could cause this so I can only suggest the most basic possible resolution - replaying the save and hoping that the newly produced savefile won't cause the same ctd.
Could you please do this mc-red?
I'm pretty sure it's not something on my end because it was right after a clean install of the game, and the other 3 pbem saves I opened worked just fine.
There's also a small possibility the save I downloaded got corrupted, so I'll try downloading it again and seeing if that helps.