I have been having a few issues with the Novopen integration. It technically works but the upload screen is almost unusable. I imported an existing pen with around 800 records. It highlighted several duplicates (that feature is really good btw), but the UI was so unresponsive it was almost impossible to scroll and deselect readings. I spent 10 minutes but only got back as far as the start of May.

The upload did seem to work in the end so this looks like a UI issue rather than core functionality.

I am using an iPhone 14 Pro