c Array of display wrong output

Question

I am trying to read the input from the terminal into array and do some further processing.

Here is the expected output

Child 1, pid 12345: Group A: ManCity (England) and PSG (France)
Child 1, pid 12345: Group B: Liverpool (England) and Atletico (Spain)
Child 1, pid 12345: Group C: Ajax (Netherlands) and Sporting (Portugal)
Child 1, pid 12345: Group D: RealMadrid (Spain) and InterMilan (Italy)
Child 1, pid 12345: Group E: Bayern (Germany) and Benfica (Portugal)
Child 1, pid 12345: Group F: ManUnited (England) and Villarreal (Spain)
Child 1, pid 12345: Group G: Lille (France) and Salzburg (Austria)
Child 1, pid 12345: Group H: Juventus (Italy) and Chelsea (England)
Child 1, pid 12345: Salzburg (Austria) vs Bayern (Germany)
Child 1, pid 12345: Sporting (Portugal) vs ManCity (England)
Child 1, pid 12345: Benfica (Portugal) vs Ajax (Netherlands)
Child 1, pid 12345: Chelsea (England) vs Lille (France)
Child 1, pid 12345: Atletico (Spain) vs ManUnited (England)
Child 1, pid 12345: Villarreal (Spain) vs Juventus (Italy)
Child 1, pid 12345: InterMilan (Italy) vs Liverpool (England)
Child 1, pid 12345: PSG (France) vs RealMadrid (Spain)

However, instead of the expected output's structure of team name(nation) vs team name(nation), I got this:

Child 1, pid 2775:  Salzburg (Lille) vs Bayern (Juventus) 
Child 1, pid 2775:  Sporting (Juventus) vs ManCity (Ajax) 
Child 1, pid 2775:  Benfica (Chelsea) vs Ajax (Salzburg) 
Child 1, pid 2775:  Chelsea (Italy) vs Lille (England) 

The interest is the right output if I use the i in for loop(line44 - 56)and I print it successful(line 52).However if I use hard code of 0(line 53). It will change the var.

below are the code of the program .

#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>
#include <string.h>

int pid, cid, parentid, myid, numTeam;
char *FCteamA[] = {}, *FCteamB[] = {}, *CountryA[] = {}, *CountryB[] = {}, *TeamA[] = {}, *TeamB[] = {};
char *Group[] = {"A", "B", "C", "D", "E", "F", "G", "H"};
int seed = 2022;

int TeamDetail= 32, MaxData = 52, MaxTeam = 16 , countCompetition = 35 ;


//build method find country in debug mode
char *checkCountry(char *Team){
    int i;
    for (i = 0; i < 8; i++){
        // printf("%s\n",CountryA[i]);
        if(strcmp(Team, FCteamA[i]) == 0 ){
            return CountryA[i];
        }else if(strcmp(Team, FCteamB[i]) == 0){
            return CountryB[i];
        }
    }
}

// debug
void debugMode(int argc, char *argv[])
{
    int checkchild = 0 , countDeatil = 3;
   
    pid = fork();
    checkchild++;
    if (pid < 0)
    { // error occurred
        printf("Fork Failed\n");
        exit(1);
    }
    else if (pid == 0)
    { // child process: handle
        cid = getpid();
        // get teamName and country
        for (int i=0; i<(MaxTeam/2);i++)
        {
            FCteamA[i] = argv[countDeatil];
            CountryA[i] = argv[countDeatil + 1];

            FCteamB[i] = argv[countDeatil + 2];
            CountryB[i] = argv[countDeatil + 3];

            printf("First  Testing :%s   %s   %s  %s\n",CountryA[i],CountryB[i],FCteamA[i],FCteamB[i]);
            printf("Second Testing :%s   %s   %s  %s\n",CountryA[0],CountryB[0],FCteamA[0],FCteamB[0]);
            //printf("Child %d, pid %d: Group %s : %s (%s) and %s (%s) \n ", checkchild, getpid(), Group[i], FCteamA[i], CountryA[i], FCteamB[i], CountryB[i]);
            countDeatil = countDeatil + 4;
        }

        for (int p = 0; p < (MaxTeam/2); p++)
        {
           
            TeamA[p] = argv[countCompetition];
            TeamB[p] = argv[countCompetition + 1];
            char *returnCountry = checkCountry(TeamA[p]);
            char *returnCountry2 = checkCountry(TeamB[p]);
            printf("Child %d, pid %d:  %s (%s) vs %s (%s) \n ", checkchild, getpid(), TeamA[p], returnCountry, TeamB[p], returnCountry2);
            countCompetition = countCompetition + 2;
        }
        exit(0);
    }
    else{ // pid > 0 parent process
        printf("Parent: Child %d collected\n", checkchild);
        exit(0);
    }
}

// estimation
int estimationMode()
{
}

int main(int argc, char *argv[])
{
    numTeam = (argc - 3) / 2;
    printf("There are %d teams\n", numTeam);

    if (strcmp(argv[2], "D") == 0)
    {
        debugMode(argc, argv);
    }
    else if (strcmp(argv[2], "E") == 0)
    {
        estimationMode();
    }
    else
    {
        printf("Please input again!");
        exit(0);
    }

    // srand(seed);
}

here is input

fixture D ManCity England PSG France Liverpool England Atletico Spain Ajax Netherlands
Sporting Portugal RealMadrid Spain InterMilan Italy Bayern Germany Benfica Portugal
ManUnited England Villarreal Spain Lille France Salzburg Austria Juventus Italy
Chelsea England Salzburg Bayern Sporting ManCity Benfica Ajax Chelsea Lille Atletico
ManUnited Villarreal Juventus InterMilan Liverpool PSG RealMadrid

The first time asks the question, I am sorry for my bad format and english. Hope guys give me the advice.