Have you been dong the FoolProof Method? Maybe go over the most recent LG's you've done, and see why you're missing those questions. Print a couple copies of each, and keep redoing them until you have all of the inferences down.
I would recommend doing them and using FoolProof Method. Flexible thinking and making inferences when the setup seems unusual can only help you. You're absolutely correct that the older, "weird" games are reappearing.
It's more that certain words should be red flags to get you to think in a certain direction rather than guiding you down that path. "At least" is a great example of this since it is a great chart signifier but not a foolproof one.