Duplicated terrain gets affected by old terrain? [Unity 5]

Hello,

I have a terrain in my scene that I duplicated, because I need to make a second version that’s slightly different.
But I’ve tried duplicating it in every way possible and the old terrain still gets affected by the duplicated terrain.
I gave them different names and everything, but it still doesn’t work.

Does anyone know a solution to this?

Using unity terrain it has a terrain save data. If you duplicate it, it would both have the same data so what you do to one does to the other. If you want one the same you would have to copy the transform and post it to a new terrain and modify the terrain values to be kind of the same as the old one.