Each time you shut off clears ECM monitors

I have a 1500 I bought it approximately two weeks ago. I have put around 500 miles on it and 4 emission cycles are still incomplete the catalyst system has said ready after driving around 40 miles in one trip. But then when I shut the truck off take the key out and let it sit until the next day. I checked it again and it is back to being not ready along with the other 3 cycles that are not ready the other 3 are o2 sensor, heated o2, and evap. My key cylinder is tricky too to get the key to turn I have to jiggle the key quite a bit to be able to start it is there a possibility that the ignition is to blame or is there some other issue possibly wrong its as if when I shut the truck off it acts as if I am disconnecting the battery but everything else works truck runs just fine shifts good etc. Any help or advice would be appreciated
Thank you