Every year I get this message, I guess from 1851-55, which is where I am in my game.
Mission 'LuxuriesWinesTheBestLargest worldwide production of Rice' in Progress
Your mission' Largest worldwide production of Rice' is well in progress, you have reached the target this year.
and this one
Mission 'Largest worldwide production of Coal' in Progress
Your mission 'Largest worldwide production of Coal' is well in progress, you have reached the target this year.
But those are not USA assigned missions, at least not in my F1 screen. My listed missions are to have the second largest warfleet, the second largest merchant fleet, and the largest cotton production.
I am ignoring them at this point and hope they cause no future game problems. If I knew anything about writing scripts for the game, I could probably correct them, but I don't, so I will just report them.
Edit - I should add that I am getting no reports on two of my missions listed in F1. I'm getting a report on the warfleet but no reports on the other two missions. Perhaps the two bogus missions I listed are substituting for the ones in my F1 list.
But for my immediate purposes, as long as it doesn't break the game, I'm not concerned, even if it costs me some points here or there. I'm just trying to play through rather than win.