Same here, though I'm not sure the 'Host OS' info is relevant. 7-zip says the same for the files in the 1.1 version of the mod but I have no issues in that case. Since the file checksums match those recorded, I guess something about our systems must be responsible for what we're seeing. Maybe I'll try to compile some details about my system and PM you if that's alright. Regardless, I appreciate you looking into this and reporting what you found. Sure, i will be happy to help if I can.