As thread suggests, I was playing an Ironman game as Ireland and having opened the game after saving yesterday, I opened the game and the ironman file apparently used the Mare Nostrum DLC (See IronmanDLCIssue.PNG) which I do not own (see marenostrumerror.PNG and dlcevidence.PNG). In all my 2K hours I have never seen this kind of bug. This is particularly annoying as I have been trying to get the Emerald Isles achievement for some time. But also because I am concerned this will happen in the future. I have not seen any records online of this bug. Does anyone have any info about this?