A lot of the puzzles in AI: Somnium Files feel really obtuse and arbitrary.
Gacha games almost always feel like this, especially if they've been running for a long time. There are always like a zillion different currencies, a complete clusterfuck of a menu, fifty game modes, dozens of things you're supposed to do per day, and sometimes a bunch of "noob traps" that you're supposed to avoid because they're "inefficient." And a new player has no way of knowing any of it because the in-game tutorial is either crap or outdated. Searching online has people being helpful, except they often refer to things that only an experienced player would understand.
Requests for help online look something like this to a beginner.
Helpful person 1: Make sure you do x, but don't do y unless you have z.
Helpful person 2: But they shouldn't do that unless they have f and g, and they're going for c.
Helpful person 1: Good point. Make sure you do r instead then. It's a better way to get for what you're going for.
Me: *blankest look on the planet*