It looks like you made hitsounds on Everlasting Friendship diff, and just copied them all to the lower diffs. HS Copier is not an HS creator. Different rhythm choices result in a lot of missing HS.
There are many missing hitsounds due to different rhythm choices throughout the map.
I'm not going to stamp the timeline. Listen to the hs throughout the sections and find what's missing and add it yourself.
Personally 01:21:253 - This was section which felt the most.