I think I found the issue. It's likely the next question button is showing below the screen. I'll hopefully have a fix up in the next 30 min (I want to make sure all the quizzes, etc. are fixed).
Thank you again for finding that!
@Blucif and @TouFuub. Should be all fixed now. Hit me up on https://x.com/incubusgame1 or Discord @ Deevilj and I'll send you something as a reward :)