As you can see, it says “Not enough Fuel” although there is exactly the right amount of it. And the star for the “Hard”-Mission is grey, both on the map and on the mission-screen. I’ve played this mission before and the “Insane”-Mission, too, so this souldn’t happen…
this has happened to me before if you reload the page it should fix it
I do not even need to reload the page, a few minutes later I could play the mission. After that I got the “Insane-Mode unlocked!”-Popup again.
I received no archievement for this, so it’s really a minor display bug.
this bug is older than the shit of dead dinosaurs.
Constantly, and no someone not to fix it.