Why is the app showing "Connecting…" / "Couldn't load your to-dos" with a spinner?

"Connecting…" appears while the app loads your to-dos from Supernote — normal on launch or after signing in. If it can't load them (for example the connection times out), it switches to a "Couldn't load your to-dos" screen with Retry, Reload and "Sign in again" buttons so you're never stuck on the spinner. Try Retry first; if it keeps failing, use Sign in again to refresh your session.