No Events And Functions Are Working When Fired Regarding A GUI?

So you can teleport somewhere in the same game (used a CFrame) and then there's a leave button, the problem is, when you press leave you're still sitting (you teleport into a seat for the first teleportation) and I've tried to get the character to unsit in this post: https://scriptinghelpers.org/questions/126022/how-do-you-set-a-players-sit-property-to-false-with-a-script

Not working, I even try to kill them like in this:

local BackToSpawnA = game.Workspace.GameSpace.BackToSpawnA

BackToSpawnA.Touched:Connect(function(Kill)
    if Kill and Kill.Parent:FindFirstChild("Humanoid") then
        Kill.Parent.Humanoid.Health = 0
    end
end)

It just doesn't work, it seems like the events are separated from the GUI somehow and don't fire, or the thing just isn't touching Humanoid (it probably is though)

Leaving GUI code:

LeaveButton.MouseButton1Click:Connect(function(Leaving)
    local BackToSpawn = CFrame.new(game.Workspace.GameSpace.BackToSpawnA.Position)
    HRP.CFrame = BackToSpawn
end)