Been having trouble with the daily missions. When its time to claim one of the rewards, the mission disappears when I hit the claim reward but the reward doesn't show up to allow me to OK it I have to refresh and then the mission shows up again, usually with seconds added to it again and then it usually works the second time.
I also frequently get a "server error" and I have to wait or refresh also.
Today I was finishing up the last mission before the daily deadline and when it came time to claim the reward, which should of lead to the reward and the daily bonus, I got a blank screen again rather then being allowed to claim the reward. Because it was close to the deadline, by the time I refreshed and it allowed me to claim the final mission it was past the daily mission deadline so I didn't receive the 150 Kobans.
Doesn't make a lot of difference to me but its a recurring problem and gets frustrating.