Okay, I have been playing the CIV version using PTW. I can at least communicate with ALL of the civs, which is a bonus. (Using vanilla CIV v1.29, After meeting all civs, I ended up having 2 civs that I could not communicate with). I also had problems with various unit animations in the pediaicons file.
Using PTW, I still get issues with the missing entries in the pediicons file, but at least my communications all work. At this point, I'm trying to remember to save at the end of every turn, because I never know when it will crash because of a missing entry.
At this point, I am 3 techs into the Industrial Age and going strong, but have had more than a few crashes. With each passing hour, I become more determined to finish this game.