(Web.js Rive Runtime Error when Cleanup) Uncaught BindingError: cannot call emscripten binding method Artboard.bounds getter on deleted object.

I'm an animator trying to integrate Rive into our Web.js game. Our file using a single riv file with 2 artboards, one for the loading screen and one for the result after finishing the quiz test, After finishing the loadingscreen animation I try using the cleanup() or cleanInstances() to clear the first animation, but seem like Rive still trying to access the artboard which lead to this error. Someone on Discord already have this problem before so I wonder is there a fix for this yet.
The files is attached below for debug.
Thank you in advanced

I'm using Window and my Developer using Mac, we both got same error