This... missing break broke everything.

SchedulerApp/src/main/java/com/example/scheduler_server/UserThread.java

@@ -94,6 +94,7 @@ public class UserThread extends Thread {
                                 exception.printStackTrace();
                             }
                         }
+                        break;
                     case "removeEmployee":
                         try {
                             int employeeID = Integer.parseInt(args[1]);