Hi folks! We're aware of issues with some NPCs not spawning as intended in Terror From Beyond, and we've listed these and a few others on the Known Issues. There's a fix in the works that will be deployed in a patch after the first of the year. Thanks for your understanding.
Been noticing that a lot of these bugs are scheduled to be fixed "after the first of the year." It's the middle of December. Nobody's doing any more bug fixing this year?