Missions
Some Commanders had their missions removed unexpectedly. This especially affected Commanders undertaking longer missions. We will restore missions from before the update to minimise the impact on players. Due to the structure of the missions system, this means that any missions taken after the update will disappear. We'll implement this in a way to make this as fair as possible - more details will be shared on this after the maintenance.
The missions may have expired, but presumably you've accounted for that.
Another issue is that people may have had real word time to complete the missions yesterday, but not today.