I found what the problem was .
It turns out it isnt the LOD’s of the terrain but the texture quality .
Texture streaming to be exact . The default pool is too small , even in the highest level .
When running the command r.Streaming.PoolSize 3000 , everything clears out immidiatly , terrain is fixed .
Now at least I have some solution , but I can’t find a way to change that other than the command .
I will open another question for , how to change default scalability settings . This is one is kinda resolved.