I’m creating an invisible zone that affects the player’s walkspeed. I want it to only fire when the player enters or leaves the zone, ignoring any actions within the zone. I have a script that increases the localplayers walkspeed by 15 when they jump. However, if they jump inside the zone, I want it…

You have to change it to server because client changes don’t replicate onto the server. And because you are swapping to the server you have to change your code a bit.