I have seen this as well, last night missions seemed to dry up. I also noticed that the fines had started to outstrip the payment, by up to twice the Cr. for the mission.
There was at least one good mission however. 375,000 Cr. to collect 19 tonnes of Gold. One problem, I had switched to an Eagle, the Cobra was parked in another system. So off to the shipyard, Bought an Adder, max'ed out the cargo space, no joy, so shields out, and 24 tonnes available cargo space. Added a multi-cannon for defence. Took the mission. Interdicted by an eagle, the Adder has rubbish visibility but at least is somewhat maneuverable, claimed the 3900 Cr. bounty. Finally delivered the Gold, sold the Adder reclaimed the Eagle. then logged out and went to bed. I will ticket it later.