I was hoping that this would be fixed eventually but with the release of arc 3.0, it still hasn't been addressed. This has been an issue for a long time while using triple jump for Hunters. Whenever you have a buff that increases jump height the third jump gives no extra height. It's like jumping into a ceiling every single time. This happens during the movement buff during dares, getting launched into the air by something else, and with Arc 3.0 the speed boost when amplified also causes this issue. At this point, I think it's intentional, but if not I would love to see it fixed eventually.