This condition here may be tru a few times. you don’t have any protection against it.
Then you get this messages here
Firs message works fine. It starts the unloading process, and loading of the lose_ending collection proxy.
But second message tries immidiatly unload and load it again, that’s why error happens.
Make sure you send the following message only once:
msg.post(“loader:/loader_go#loader”, “lose_ending”)