get a walking start for one. Aim for where it dips down. Then hover when you're close. Good luck.
Could be because you're up to close to it when you hover which makes you lose momentum. Could also be your angle.
I just watched your past broadcast. You're having trouble with the double jump timing, right? Well, the input timings are a bit different for walking double jumps. You can get there with a standing still double jump, though so I would say that if you're not comfortable with walking double jumps yet then just do a normal one.
Hey Im using an emulator how to I get livesplit to work so that I dont have to press the split button twice?
I think you need to enable global hotkeys, maybe? I'm not 100% sure what the problem is but that might be what you're looking for.