I have ftx global and downloaded the iceland demo as well as the pacific nw demo. In iceland I noticed that there were areas of land where the buildings were under water. Then I tried my new flytampa st. marteen airport and there are a bunch of trees in the middle of the ocean and there is a ton of water covering the mountains. I have updated all the patches. Anyone have an idea of how to fix this? 

You are best asking here:-

 

http://www.orbxsystems.com/forum/forum/15-full-terrain-experience-ftx-payware-support-forum/