My jurors can't see a call submissions after login

You must assign juror logins to calls for entries so that they will see them when they login. Select the jurors for a call from the 'Jurors' list when editing a call.

Also, make sure you've published your call so jurors can access it. When editing a call, click the colored status pill in the top-right and choose Active (or Jury Only if submissions are closed and you only want jurors to see it). If the call is in Draft status, it's hidden from both artists and jurors.