Conveyor belt works in studio but not in Roblox

So, it’s me again. I guess I am really bad at scripting. Anyways, I got a conveyor belt from Toolbox. It works in Studio, and in the Roblox website, but not in the Roblox app (from Microsoft Store). Why do some things not work on the app?

can you look in the output in the roblox app and then show us the script?

When I looked up “conveyor belt”, all the scripts are the same

Could you join your game in the microsoft store version of roblox, press F9 and show us the output?
Additionally, could you show us the script?

We are unable to easily provide help unless you provide us with the script.

Well, try playing Flee the Facility in the Microsoft Store Roblox app. When you are the beast, your hammer does not swing. You have to play in the website version to get the hammer to work. This is an example.

The script is:

script.Parent.Velocity = Vector3.new(-10, 0, 0)