A job was dragging on, so I cancelled it in the interface. Drone displayed the job as failed. But the agent never began processing the next job. Its last log was {"arch":"amd64","build":20,"level":"debug","machine":"drone-drone-agent-b8d98cc46-txqjl","msg":"runner: done watch for kill signals","os":"linux","pipeline":"default","repo":"Adaptly/connector","stage":1,"time":"2018-11-29T16:46:27Z"}. To resume processing, I was forced to kubectl delete the pod.