Saving a map with a landscape causes the landscape to visually distort. How can I stop this from happening?

Whenever my map with a landscape saves the landscape distorts. Usually going flat but sometimes shooting up into the air. If I sculpt at all, it snaps back to how it should look until it saves again. This happens with manual saves as well as Autosaves. If I move the camera the area close by stays normal and the distant landscape distorts around so I’m sure this has something to do with LOD but I am new to Unreal and unsure how to fix it. Please advise.