Builds don't transfer to better together

When I transfer xbox1 edition worlds to minecraft 1.2 on xbox1 using the old world transfer that is provided, it only transfers the seed and none of the builds from the xbox1 edition exist in the new version of minecraft. I can see all the old structures on my map but as I get close it overwrites all the new terrain into a new untouched world on the map. As I look at the horizon I can not see any of the builds that were there in the old version.