You don't say what model you are using and it's not in your profile.....
However, I can tell you this.
1. My Go940 originally had what TT called "Western and Central Europe" mapping. 2. For the last several updates the map offered has been called "Europe" by TT Home.
3. But when it gets installed on my unit, it gets put into the original "Western and Central Europe" folder and the unit STILL calls it "Western and Central Europe" on the Switch maps page and on the info screen.
4. The exact same map, when installed on my Go950 gets called "Europe" as that's the original map name the device was supplied with.
So my supposition is that there was a W+C Europe map some time ago, that WAS different, but it is now exactly the same as "Europe".