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You could potentially be causing problems by editing the iterator in your for loop setQuestionIndex(). Try doing it without, like:

void setQuestionIndex()
{
    int questionIterator = 0;
    for (int i = 0; i < questionNumbersChoosen.Length; i++) {
         int questionNum = Random.Range (0, questions.Length);
         if (!isContain (questionNumbersChoosen, questionNum))
         {
              questionNumbersChoosen [questionIterator ] = questionNum;
              questionIterator ++;
         }
     }
}

That is unless I'm missing the reason why you're doing that?

You could potentially be causing problems by editing the iterator in your for loop setQuestionIndex(). 

Try doing it without, like:

void setQuestionIndex()
{
    int questionIterator = 0;
    for (int i = 0; i < questionNumbersChoosen.Length; i++) {
         int questionNum = Random.Range (0, questions.Length);
         if (!isContain (questionNumbersChoosen, questionNum))
         {
              questionNumbersChoosen [questionIterator ] = questionNum;
              questionIterator ++;
         }
     }
}

You could potentially be causing problems by editing the iterator in your for loop setQuestionIndex(). Try doing it without, like:

void setQuestionIndex() { int questionIterator = 0; for (int i = 0; i < questionNumbersChoosen.Length; i++) { int questionNum = Random.Range (0, questions.Length); if (!isContain (questionNumbersChoosen, questionNum)) { questionNumbersChoosen [questionIterator ] = questionNum; questionIterator ++; } } }

That is unless I'm missing the reason why you're doing that?

You could potentially be causing problems by editing the iterator in your for loop setQuestionIndex(). Try doing it without, like:

void setQuestionIndex()
{
    int questionIterator = 0;
    for (int i = 0; i < questionNumbersChoosen.Length; i++) {
         int questionNum = Random.Range (0, questions.Length);
         if (!isContain (questionNumbersChoosen, questionNum))
         {
              questionNumbersChoosen [questionIterator ] = questionNum;
              questionIterator ++;
         }
     }
}

That is unless I'm missing the reason why you're doing that?

You could potentially be causing problems by editing the iterator in your for loop set question index. Try doing it without, like:

void setQuestionIndex() { int questionIterator = 0; for (int i = 0; i < questionNumbersChoosen.Length; i++) { int questionNum = Random.Range (0, questions.Length); if (!isContain (questionNumbersChoosen, questionNum)) { questionNumbersChoosen [questionIterator ] = questionNum; questionIterator ++; } } }

That is unless I'm missing the reason why you're doing that?

You could potentially be causing problems by editing the iterator in your for loop setQuestionIndex(). Try doing it without, like:

void setQuestionIndex() { int questionIterator = 0; for (int i = 0; i < questionNumbersChoosen.Length; i++) { int questionNum = Random.Range (0, questions.Length); if (!isContain (questionNumbersChoosen, questionNum)) { questionNumbersChoosen [questionIterator ] = questionNum; questionIterator ++; } } }

That is unless I'm missing the reason why you're doing that?