MessagingService SubscribeAsync can infinitely yield a script with no error in TeamTest

we had a problem with the game in team test and found out that MessagingService SubscribeAsync hangs indefinitely with no error.

the following script will not print End only in the TeamTest

print("Start")
local MessagingService = game:GetService("MessagingService")
MessagingService:SubscribeAsync("Test", function(message)
	print(message)
end)

print("End")
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