Problem in world composition

yeah I know you can reset the components for the original landscape then it would probably line up. but ive already added a lot of foliage & I don’t want to start all over.
I really wish in world composition all landscapes would automatically line up with adjoining. this is a pain . im making an open world game also.
when I first started using wc my beginning level has a lot of houses,npcs,and stuff to make it look like a village. but shaping the landscape I cant add very high hills or deep valleys in it because of the setting I first used. oh well :confused: