yabbagabb :
i'd say there is a difference, based on you can't load 10.1 saves with a 10.0 game version (an error message pops if you attempt to do it).
and as i said, my save is originally a 10.0, but after patch was released, i continued it with 10.1. but its only a hint, however i think its worth to check.
I'm almost sure it's not true. After I make new game (usually I use 20 leagues, so it is loading quite long), before adding manager I save it to save some time next time I want to start new game. Genie Scout loads it without a problem. There is a possibility (about 10%.. I don't remember) I saved this new game, loaded it now, made new manager and saved it as new game, genie read it too. I think problem with person data will show up in every long game. I was suprised when it appeared after only one season. I had the same problem in FM 2009, but then it showed up after 3 seasons. I was looking for solution, downloaded different scout, and there were some players with strange ID's like -24. I always make backups of games quite often, I did one after last league match in that third season and after new started I wanted to look if there are some new tasty newgens. That was when person problem appeared. I loaded backup from ending of the season without problem. I'm not sure if I wrote it clear, but I hope you have got my point