TeleportService won't work in my game?

I'm trying to make this lobby system in my game, and I made a new game inside of the starting place. When I tried to make a teleporting brick to the second game, I tested it in Roblox and when I step on the teleport brick, Roblox will always crash, no matter the method of scripting I use for the teleport brick. It seems that if I put the GameID of the second game, it always crashes Roblox, but when I put the GameID of the starting place, it works fine (it makes you re-join). Any idea on what's happening? (I've tried making the two games public, and double-checking the ID as well)

Here are a couple of related problems:

https://devforum.roblox.com/t/roblox-client-crashes-by-teleportservice/742820 https://devforum.roblox.com/t/roblox-client-crashes-by-teleportservice/742820

The first one is talking about a virus in your plugins/models.

The other is talking about the step function, saying that you should debounce your code.