Problem when removing a marker from a map

[jcmjcm10]

Hi,

I've created a very simple example of adding and removing a marker. I need to use toRaw in order to workaround the problem, but I don't see any example in the documentation using toRaw, so probably I'm doing something wrong of there is a bug somewhere.

Please see the example here and try to zoom in/out:
https://codesandbox.io/p/sandbox/vue3-leaflet-forked-m8lz8g

You'll get this message:
Cannot read properties of null (reading '_latLngToNewLayerPoint')

Now comment out the code where toRaw is not used, and see the error does not happen.

Can you please explain why I need to use toRaw?

Thanks!