Hey FacePalm,
In regards to the mesh distance fields this would be handled inside of your meshes on your LOD’s.
Steps to recreate :
1.) Locate a mesh that you are experiencing this issue with.
2.) Double click that object in your content browser to bring up that meshes information window.
3.) On the right side under Details there will be a LOD section.
4.) In that section there is another roll out menu for Build Settings.
5.) Down at the bottom there is a tab called Distance Field Resolution Scale.
6.) On the larger objects you may be able to get away with number like 3.0. ( I wouldn’t recommend going any higher as it increases draw time.)
7.) As an alternative you may eliminate the scale with a value of 0. This is usually done with grass and small foliage.
Many of these preferences work in optimization workflows and it will be different for different games.
Finding what works best for you will require some tweaking,
Hope this helps,