How come the Name you type in the full names bar changes in the game all the other names with that surname or forename like i.e. regens for instance why do you have to keep there names has they are

How come the Name you type in the full names bar changes in the game all the other names with that surname or forename like i.e. regens for instance why do you have to keep there names has they are

 

The best way to make sure, that there's no changes to the rest of the game, are by using the In-game editor..., there there is no problem by changing a name. FMRTE are the best in so many other ways, but I too have experinced this problem, with the name change, so I use the different editors for different things.