10 days ago there was an update on Steam for the OS X version of Civ 5 with G&K and BNW. Now when I upload my save files to the web client I get an error saying "The file selected for submission was not a valid Civilization V save file." I tried to revert my Civ 5 steam version but failed so I am hoping the fix is easy on the GMR side or someone can tell me a fix.

Much appreciation for any help in advance.

My friend who was eliminated said that the game let him play a turn. He uploaded that and subsequently surrendered. Will see later tonight if all is well when it gets back to me but if yoy don't hear from me please assume that this worked.

I just played my turn and eliminated the player after me. Civ5 says its the player after next turn and the GMR application says it is the eliminated player's turn. Does the eliminated player need to surrender?