Two conditions are required for Judges to see their Competitors:
The Judge must be checked in
The judging time window must be open
If your event has not yet started (check the Dashboard tab to see if your event is live or not) but you want judges to see their assigned competitors, you should change the start time of the event so it has started- just click the start time on the Dashboard tab, change the time to the present/some time in the past, and click Update Event when prompted.
If your event has ended, (check the Dashboard tab to see if your event is live or not) but you want judges to see their assigned competitors, you should change the end time of the event so it is still live- just click the end time on the Dashboard tab, change the time to some time in the future and click Update Event when prompted.
Judges must be checked in to view their competitors.