I got the dialogue to show up by enabling fullscreen, puzzles were simple, at the painting one i got a bug where the puzzle won't show anymore after failing it and that's where i stopped.
Thanks for the feedback I'm quite sorry for the inconvenience, we've tried fixing all the bugs that we could find during the time limit, but since this is our first time making a game there are still some bugs that slipped through. Hope you still enjoyed it tho!