Hey KSI, how are you?
1 - Some POSCON officials said on Discord that some problem may have happened with the airports in February because it wasn't supposed to allow for a repeat. Or maybe the list could have been reset. Anyway, that's the rule: 10 newer airports every month.
2 - I noticed this "problem" too. But maybe some bizjet could execute that leg, or not? And yes, I agree with you, you need to check future routes to avoid this “troll”.
until