Tightrope doesn't appear on level 4 of episode 3 in the first game

I'm on level 4 of episode 3, and no matter what I do, I can't get the tightrope to appear at 6:51.

I've already enabled VSync and verified the integrity of the game's files on steam.

I already had issues in the first level of the game with the cart that Robin was controlling not moving, but turning on VSnyc solved the issue. Now, I have no idea what to do.