Why doesn't execvp work after ptrace(trace_me)?

[vast finch]

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[kind horizon]

pid_t pid;
pid = fork();
if (pid == 0) { // Child process
dup2(STDERR_FILENO, STDOUT_FILENO);

            ptrace(PTRACE_TRACEME, 0, NULL, NULL);
            args[argNumber] = NULL;
            char *temp[argNumber-1];
            for(int i = 1; i < argNumber+1; i++) temp[i-1] = args[i]; 

            raise(SIGSTOP);
            
           (execvp(args[1], temp) < 0);
        } else { // Parent process 
        }

I verified that the arguments are correct, and yeah I pushed a signal continue in a different command after, but when I move the execvp above the ptrace it works fine