If we can rule out core mod version mismatches (since you have no mods at all nor either kind of framework), Superpatching I presume to 1.67 was successful and not by running an older version of the SuperPatcher, and this computer has never "seen" TS3 before now, then I would have to say this is pretty unusual.
What is your source of install, it can't/shouldn't be Origin for Windows or Steam if we are talking about Superpatching, so I guess it's all retail disc or you are on a Mac? Possibly you have inadvertently run the 1.67 Superpatcher on a Steam or a 1.69 Origin install? Or is the install source from someplace else?