To prevent loading issues, some courts will be configured to only display a certain number of parties on the Parties, Service and Summary pages in a case (example in screenshot below of a court who displays a maximum of 15 parties).
You can still see the hidden parties on both the Party and Service page by clicking 'All Parties' to the top right of these pages.
This button will load a filter to allow you to select the parties/contacts you wish to view or edit.
Note: When eFileandServe or Serve filing types are selected for a filing, all service contacts are selected for service by default. However, to view or edit which parties/contacts are being served, you are able to select the All Parties button on the Service page.