When you get "Starter Pack
" of puzzles, the last on, called "Experience
" makes you fight with Gorgon (the very first fight). A tip pops up about not worrying about getting killed by Gorgon, because of the "cheat death". However you get kill anyway a hit after, which, I think makes this puzzle un-solvable. The Gorgon monster got a buff to its HP in a recent update, which broke this puzzle.
In tutorial (I think) 4, where you need to kill your first goat, it starts with glyph and 4 items to pick up. After you've picked up three, the text says that you can't pick up the forth even though you still have slots, because you filled all the slots of the same type. I can easily pick up the forth, and I see no difference in slot types. There used to be inventory restrictions on physical and magical items, which are no longer in play. An inventory slot is now an inventory slot. The tutorial might use a wording change.