@JunkMonkey
The hash offsetter only works on original raw assets. It will not work on ripped assets without fist decompiling them, and only then if the condition of the files is good. If the person you ripped off of also used the hash offsetter, then the files are trash. Pretty much anyone uploading BM in 2016 or later is using the hash offsetter.
If you want it to work perfectly as intended, then you'll need to buy the original raw assets from someone who has them ... or make your own products from scratch with a 3D modeler.