The Church of Jesus Christ of Latter-day Saints

I'm guessing the annotations that didn't download are of a certain type? For example, highlights without notes attached? That's interesting that it didn't download anything more recent – I assume you've written notes since 2016. That definitely sounds like a bug.

What version of Gospel Library do you have?
Does your wi-fi network have any content blockers or filters on? Some filtering services block the Church's content servers.

There's also an "All Tools" button in the My Account and Ward menu.

Gospel Library is available on the Google Play Store and the Amazon Appstore. Does your device have either of those options?

If the app doesn't work, an alternative would be to use the website:
https://myinstitute.lds.org/

Hmm. Do you happen to have the app installed on an SD card, or is it on regular internal storage? There's currently a beta for the Seminary & Institute app (bug fixes, mainly). You could try joining it (using the link on the regular Play Store listing for the app) and seeing if the beta fixes th...

The current version of the app, Gospel Library 5.2.3 for Android, no longer supports Android 4.4. The previous version of the app (5.2.2) was temporarily unavailable on the Play Store, but it should be available again now for your device.

Which model of device do you have, and which version of Android? Does clearing data allow you to sign in? (Long press app icon > App Info > Storage > Clear Storage, OR Android settings > Apps > Seminary & Institute > Storage > Clear Storage) Alternatively, does deleting and reinstalling the app ...

Si tiene dos cuentas, creo que necesita usar la cuenta que tiene vinculado su número de registro de membresía. Puede trabajar con su secretario de barrio o de rama para ponerse en contacto con el Centro de servicio global (Global Service Center), que puede combinar las dos cuentas. Si eso no funcion...

Are you on iOS or Android?