Ahh I see. Sorry, I missed the part where the model and board ID were different.
I thought you were confused as to why it was mounting as a storage device.
I know in some cases the libraries used (Arduino or the CircuitPython bootloader for example) don’t distinguish between the two variants.
But I don’t have the sense variant so I don’t want to say much more that might mislead you.
Apologies that I couldn’t resolve your question.