Looks like the same type of temporary "fix" FDev used when certain Passenger Missions were deemed to be over paying. I fell foul of this a LOT. I'd see a tasty passenger mission with a decent payout (50m +) but it'd be to a very distant station, we're talking over an hour in SC, and I'd invariably be attacked multiple times for this type of mission. I'd accept, complete and enjoy missions paying out 30 million or so, but trying to accept one for 50m or more would break the missions boards, often requiring me to log out of the game to fix.
It does seem odd to me that FDev can't simply stop a mission from appearing at all, rather than putting a fake reason on it and confusing people.
I've not encountered any of these missions myself - all my payouts, even with having excellect faction standings - have been low, and simply not worth my time. I understand why people feel tempted to board flip at times as I'm arriving in systems, docking and finding literally nothing worth my time...perhaps I just had poor RNG luck though.
Scoob.