Why can't I make the ground in my platformer make you respawn when you fall on it from a higher point in the game?

[Demo]

search before you post please theres a lot of guides on this but heres one of them

Making a Falling Respawn System. (Automated)(Difficulty≈🟨)

Hello everyone! In this guide you will learn how to make a player respawn when they fall without any zones! WARNING This is definitely not the most memory efficient way to make a system like this, but if you make a height meter system in your game it will be very useful. :warning:This guide contains block code. My second guide. Hopefully this will be useful for all those difficulty charts or just parkour maps out there. If you haven’t caught on, I like automated systems! Firs…

Summary

@813MAVIS

Why does everyone use lasers , just make a really ,really long zone and wire it to a respawn device. (Player enters zone - Respawn).