Connect v5.17.2 stuck on black screen

For the past week or so, my Connect app has been loading only to the black 'Garmin Connect' screen. If I try to uninstall and reinstall the app, then log in, the only thing I see is an animated running icon. It won't move forward to the actual app. Please see below for what I mean.

I'm currently using the app on a Google Pixel 7 running GrapheneOS, and my Garmin device is a Vívosmart 5.