I think thats a bug, I'm guessing you're trying one of the NPU models? If you drop to CPU for now it should hold.
Only phones with qualcomm chips are able to use the NPU. I'm working towards changing that.
but yeah just to be clear there is no internet needed to run any of this. Infact I'm so averse to it, I've not even added analytics for this one. So flying pretty blind here.
Anyway, I like what you did, as I do not want to train AI with my inputs this is perfect.