Make sure your volume is on. Also you might be stuck on a cutscene for up to about 4 seconds, as it's waiting for a music cycle to end. Prepare to be ragebaited. Time your jumps! Haven't verified this yet but should be doable
My rankings: 1: harder 2: harder 3: a lot harder 4: a bit harder 5: not much harder 6: not much harder 7: a lot harder 8: a bit harder 9: almost impossible 10: almost impossible