Your suggestion on Terrain LOD Redone worked. I disabled it, and DynDOLOD launched. Oddly, I have had it in my LO for at least a year and still generated LOD several times without conflict. For some reason, the Alpha 111 didnn't like it, or more likely, I managed to change my LO without understanding how. I certainly did not change any priority rules involving it. Thank you again for your help.