My Dialog System Only Works In Test Mode?

I usually don't have this problem, as I already know that filtering enabled doesn't take effect for play mode in studio, but test servers in studio does use it - leading to different outcomes when testing. In my instance, I am using DialogChoiceSelected event to open up a Shop Gui. This system works perfectly when in play mode, but not when I open up a server.

Here's the script:

local dialog = script.Parent
local DialogEvent = game.ReplicatedStorage.DialogEvent
print("loadded") -- this is the only message that prints.

dialog.DialogChoiceSelected:connect(function(plr, choice)
	print('dialog selected :D')
	if choice.Name == "AskForShop" then
		DialogEvent:FireClient(plr, "Shop")
		print('fired to client')
	end
end)

Yes, I made sure that all the names were right, and as I said before, the function is only fired when in play mode, not in server mode. Weird.... Any solutions?