The jobs in your single active history have been queued for only 7 hours (now). Were queued about an hour when this was posted. Please give these jobs time to run. Queue time can vary with how many jobs are launched/in queue at the same time, the type of job, server load, and the target cluster (when specified).
We are looking into reported delays that are much longer (not confirmed yet), read here for details about that: https://biostar.usegalaxy.org/p/21626/#21673
Thanks! Jen, Galaxy team