I've worked on a worldspace for a while now, and I'm starting to get a hang of TESAnnwyn and that stuff. It worked out fine when I tested in-game.
Then I generated LOD to my worldspace using the CK and added a .lod-file using the lodFileGenerator, and when I go in-game now I have a flat landscape. Do anyone here know what I may have done wrong?

Thanks for the help!

If I remember correctly, I read somewhere that you shouldn't save the mod after generating the LOD in CK. So what you should do is save the mod, generate the LOD in CK and then just shut down CK without saving.

Ah, that explains the warning-text when I tried to save.
I'll try this, thank you!