Follow this step to see if they appear

Possible Cause #1

No teams added to your meet
1). Visit your Meet Dashboard
2) Select Meet Details tab.
3) Make sure your meet has 'Teams' selected to compete. If not, select these teams and re-save

Possible Cause #2

Teams in ST, do not match the CSV/students you imported
1) Check that the students you imported have been added to the teams you have created in the software.,
2) Visit Teams section
3) See if you have any members within those teams

If this doesn't resolve your issue contact support to see what other settings might be at play