Same here, I've done it twice now and it gives me the 'fail' message anyways.
Plus, the papers found in the labyrinth are absolutely misleading (especially the "forth is the trickster's hat" or whatever it was - IF Fuzzbucket's list was correct, that is). Which really annoys me. Why have mystical messages if they don't even help??
Anyway, I gave up on this. The puzzles just aren't my thing and I hate Trial&Error mechanics to begin with. 😕
Good luck to everyone else tho.