hello.
in current version the higher lvl we are, the more the special mission are rebooted.
so you have to play the game more frequently each day as your lvl grow.
but if you work, that not always possible.
so, why not only one reboot by 24h, but with a higher number of special reward's missions availables depending on your lvl ?
so players don't have to bow to the game agenda, but can have their speials rewards anytime when they have free dayly time to play.