It feels rather cruel of you to add in that mushroom platform section with the Fox mask because I just keep on falling in the canyon below. The hitbox for the mushrooms themselves feels off because sometimes i can jump on the mushroom and sometimes i can't, and I don't have any clue on when I should dash over and when I shouldn't dash over. I've read through the instructions you wrote on the sign, but they don't help me at all. It really feels like you should've tested out this section more before you decided to drop the update that was added in this area.
And i'd just like to note that it's way easier to use the Gargoyle mask to pass this section than the Fox mask.