OK so I spend an hour creating a proceedural terrain in the terrain editor, I get it just the wat I like it. Click OK and continue on. See something I want to change in the terrain so I open it back up in the editor and Low and Behold the terrain that appeares in the editor is nothing like the one in the viewport. Using Vue Infinite. What is wors if I click OK. Then the different Terrain now becomes the one in the viewport. This is really frustrating and I have to start all over again. What gives, Why is the terrain changing when it is subsequently opened up in the editor after creation. At best it is a remote facsimily of the actual proceedural terrain in the viewport. Also for some bizzare reason the Export terrain button is always grayed out in this mode.