No need for kds, just trying to point out what I dislike in hard.
Easy and Normal are fine.
Hard: Does not look like much changed, so I am going to list eh overlaps I disliked to make things more clear.
AR(approach rate) seems a little high, you might want to decrease it
00:14:219 (2,1) - overlap
00:17:760 (3,5,3) - overlaps (this section gets feels a little messy)
00:27:761 (8,1) - overlap
00:45:885 (5,2,3) - overlaps
I think you get the idea now. If not I highly advise you get someone to translate this for you.
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Lets see what you do from here. I'll await your changes.