What does “Awaiting Upload” mean in the agent display?

Generally, it means that the uploading of new jobs is temporarily suspended due to storage space restrictions.  This message may be farm-wide, and it may be targeted to just your account.  If you have several large jobs already in the render queue, we may be preventing the use of additional storage space by your account until some of the current jobs complete.  The best course of action in this case would be to either increase the Power level of your jobs or put some of them on Hold to direct more compute resources to one job at a time.

In both cases, our system will allow uploads again automatically when they will not be detrimental to our service overall.