I used to get answers from TTC via email, but the guy they had doing it quit. I think it just gets ignored now. There was a decently active thread over at
SomethingAwful up until about last year, but it's gone silent. The subreddit (I'm the admin of it) gets about two posts a week, but there's only maybe two dozen active users. The thread here has about the same dozen people talking to each other.There's exactly one blog left posting about it. I haven't seen a post on other platforms in years. The
Discord used to be decently active, but haven't been on it in a couple years seeing as I got booted for complaining about the inconsistent stat problem too much (excessive negativity).
The Facebook groups are official, no matter what TTCombat might say about them, because the owner of TTCombat and a couple of employees are admins of it. Employees aren't particularly active, unless swinging a ban hammer around. Also after they closed their blog, it's the only place they post stuff on the net anymore.
The guys that ran the tournament at Adepticon had this link for clarifications and fixes -
https://drive.google.com/drive/folders/1o8fIfp_3wREIDeRw4o1t0PFFC9U2PalB
Most of the people playing are using houserules of one kind of another, and/or older editions, so don't concern yourself too much with official answers.
Shaltari is hard to learn the game with, considering how they're the lone exception to many rules and systems. If you played "Targets of Opportunity", which it sounds like you did, that's also a really badly designed scenario for the current edition. I tried arguing with the game designer for years to modify it or replace it, because 'game was over turn 2' is a regular problem with it, both for new and experienced players. "Survey and Control" is a much better scenario from the core rules.