Sysdig cannot associate the Child process of fork in C language with the command executed in the Child process

[Forest William]

char *cmd = "ifconfig";
pid_t pid = fork();  // create 
    if (pid == -1) {
        perror("fork error error error");
    } else if (pid == 0) {
        system(cmd);  }      // Sysdig cannot capture the complete event flow between the Child process and the executed command, especially the lack of clone events from the subprocess to the cmd ?  Has anyone else encountered this problem? Help me, thank you