All of chunkmerge generated collision meshes are suspectible to a bug which in rare ( albeit possible ) circumstances can crash the game. This tool will help you fix it.
Permissions and credits
Author's instructions
File credits
This tool uses Niflib & Nifutils, see their licenses in appropiate files. This tool uses havok. Copyright 1999-2013 Havok.com Inc. (and its Licensors).
All Rights Reserved. See www.havok.com for details.
Donation Points system
This mod is not opted-in to receive Donation Points
Long story short - every collision created using the ,,ChunkMerge" tool by skyfox69 is affected by a bug, where the very last byte of the MOPP code was copied as first one and therefore the very last MOPP command couldn't execute properly, in best case resulting in a small collision issue, in worst case jumping into the random memory location, causing skyrim to crash.
This tool fixes the issue by copying the first mopp data byte to the last one. ( it can do more, but i use it internally and is not ready yet for public :P will add more when time comes ).