Fixed issues related to the exercise/question index in the ModuleTitle

src/components/Exercises/MultipleChoice.tsx

@@ -48,7 +48,16 @@ function Question({
 	);
 }
 
-export default function MultipleChoice({id, prompt, type, questions, userSolutions, onNext, onBack}: MultipleChoiceExercise & CommonProps) {
+export default function MultipleChoice({
+	id,
+	prompt,
+	type,
+	questions,
+	userSolutions,
+	updateIndex,
+	onNext,
+	onBack,
+}: MultipleChoiceExercise & CommonProps) {
 	const [answers, setAnswers] = useState<{question: string; option: string}[]>(userSolutions);
 	const [questionIndex, setQuestionIndex] = useState(0);
 
@@ -59,6 +68,10 @@ export default function MultipleChoice({id, prompt, type, questions, userSolutio
 		// eslint-disable-next-line react-hooks/exhaustive-deps
 	}, [hasExamEnded]);
 
+	useEffect(() => {
+		if (updateIndex) updateIndex(questionIndex);
+	}, [questionIndex, updateIndex]);
+
 	const onSelectOption = (option: string) => {
 		const question = questions[questionIndex];
 		setAnswers((prev) => [...prev.filter((x) => x.question !== question.id), {option, question: question.id}]);

src/components/Exercises/index.tsx

@@ -22,11 +22,17 @@ import InteractiveSpeaking from "./InteractiveSpeaking";
 const MatchSentences = dynamic(() => import("@/components/Exercises/MatchSentences"), {ssr: false});
 
 export interface CommonProps {
+	updateIndex?: (internalIndex: number) => void;
 	onNext: (userSolutions: UserSolution) => void;
 	onBack: (userSolutions: UserSolution) => void;
 }
 
-export const renderExercise = (exercise: Exercise, onNext: (userSolutions: UserSolution) => void, onBack: (userSolutions: UserSolution) => void) => {
+export const renderExercise = (
+	exercise: Exercise,
+	onNext: (userSolutions: UserSolution) => void,
+	onBack: (userSolutions: UserSolution) => void,
+	updateIndex?: (internalIndex: number) => void,
+) => {
 	switch (exercise.type) {
 		case "fillBlanks":
 			return <FillBlanks key={exercise.id} {...(exercise as FillBlanksExercise)} onNext={onNext} onBack={onBack} />;
@@ -35,7 +41,15 @@ export const renderExercise = (exercise: Exercise, onNext: (userSolutions: UserS
 		case "matchSentences":
 			return <MatchSentences key={exercise.id} {...(exercise as MatchSentencesExercise)} onNext={onNext} onBack={onBack} />;
 		case "multipleChoice":
-			return <MultipleChoice key={exercise.id} {...(exercise as MultipleChoiceExercise)} onNext={onNext} onBack={onBack} />;
+			return (
+				<MultipleChoice
+					key={exercise.id}
+					{...(exercise as MultipleChoiceExercise)}
+					updateIndex={updateIndex}
+					onNext={onNext}
+					onBack={onBack}
+				/>
+			);
 		case "writeBlanks":
 			return <WriteBlanks key={exercise.id} {...(exercise as WriteBlanksExercise)} onNext={onNext} onBack={onBack} />;
 		case "writing":