Thanks for your answer. I tried again and now it seems to work fine. I now have another problem though unfortunaly. Hope you can help with that maybe. Its weird, sometimes all seems to work with the same options ticked, sometime it doesnt. I use the newest version 45.7. I applied the lod 1 and 2 for the new tree models i finsihed within the CK, saved as a new esp and ran LODGEN. Some LODs in my game work properly, in some areas though i for example see the LOD of a maple but as soon as i get closer it dissapears and i see that there isnt even a maple standing there if that makes any sense?