Smite and sharpness not working

What I expected to happen was...:
Smite 5 usually one hits an undead mob like a skeleton. Sharpness usually does more damage and emits particles.
What actually happened was...:
Skeleton didn't die to smite and sharpness didn't work.

1.20.4 - https://www.dropbox.com/scl/fi/7go7jybpgdop7edvw3tg8/Untitled-video.mp4?rlkey=ekorafnjv3uylghi1drfmvhjo&st=rqwd2x1k&dl=0
18w14a -https://www.dropbox.com/scl/fi/rwegou772qojvr80b3yuw/24w18a.mkv?rlkey=94nrtftem6fqbih68ayg3z7jx&st=rrvbh45c&dl=0