Ruins of Bthalft Exterior terrain missing.

[RatB0Y68]

I am on Skyrim AE version 1.6.353. I have the 4 free CC dlc & USSEP updated to latest version. My setup was downgraded from 1.6.640 using the Downgrade Patcher.

I discovered recently that a section of the basic terrain around the ruins of Bthalft is missing. Trees, rocks, mountains & other objects remain but the actual land is missing.
I examined the area of worldspace in SSEedit, I have no additional mods that affect this area to create conflicts. I am at a loss as to how this is being caused or how to fix it.

 

I recently uninstalled several land altering mods such as Nature of the Wildlands, Folkvangr, Majestic Mountains, Occlusion & DyndoLOD.

However, I doubt these are the cause as I have deleted all their content & started a new game.

Any insight would be appreciated, I am at a loss as to all this.

 

UPDATE:

I fixed it, I have no idea what I did, thanks anyway.

[anjenthedog]

idk, if you messed with the mountain textures and they're (vanilla) missing after uninstallation of a mountain modifier (ie Majestic, etc), and you have no other mountain mod installed, then I'd suggest running the file integrity checker, to make sure that all the original vanilla textures and meshes are restored.

 

However, if you *do still have a mountain mod installed, and if running the integrity tool doesn't cut the mustard, you might check there, or check there first.