Hello,

I've a tiny issue with some custom static objects which have LOD (and works properly). These objects are big like mountains. I've also made a custom worldspace which is 32x32 cells where I've put the objects.

Sometime, these objects, may appears when they're on sight. LOD are ok.

Someone have/had the same experience? How can I fix it?

Thank you.

Does it happen often or only sometimes? Because, in all honesty, I experience that in vanilla game as well. I jump up the mountain and suddenly get stopped by an invisible wall just to see a big piece of mountain magically appearing in front of me.

Well, I never get stopped by any invisible wall except where expected like the invisible walls surrounding Solitude or Whiterun.
In most cases, the issue will appears with objects which have at least 1 cell distance. For example I've made assets for a canyon that surrounds the worldspace. When I've the asset on sight from the beginning, everything is working fine, including the LOD fade, but sometimes when I see in other view with the camera, the asset will popup when it's on sight.

A picture o the assets: http://www.nexusmods.com/skyrim/images/428856/?

Some of these assets are duplicated vanilla ones with modified textureset. Other, like the walls and that big arch are mine work.