pixel_player98993701 Like you, I have the same problem. I completed all locations but last gate won’t pop up. I don’t remember seeing the last key however. I think the trigger to handling the potato sacks maybe the cake being burnt out. We needed to have both the newspaper and matches to start the fireplace. However, after starting the fireplace, both the matches and the newspaper are still in my inventory. Do you still see them as well? I am thinking they should have been consumed already. I did not see the key popped up in the Back in the professor’s cabin even in the first walk through so I’m thinking the cake being burnt up was the trigger along with clicking the last clue in the birthday island before handling the potato sacks. If that was the case, matches and newspaper should no longer appear in our inventory.