Update on troubleshooting that I've done.
1. Clean save and uninstalling everything related to DynDOLOD and LOD
2. Creating new game and the black stuff and occlusion holes are still there
Starting to think that it might not be LOD issues, but vanilla issues.
3. Validating Steam files
it might be from one of my mods but for the love of the nine, I can't figure out which mod causes it