Menu Bar Restriction

I have applied restriction on menu bar because of which a lock symbol appears, and as I keep progressing, the lock gets removed, the same is appearing on the quiz section as well, however after I complete the quiz in storyline 360 the lock does not get removed, and takes me to next slide. So all chapters (scenes) have tick mark except quiz which still has lock, even though we have completed the same. How do I fix that? Immediate assistance will be appriciated.