FAQ: I upgraded to Instapaper Free 1.2 and none of my old articles are available offline
Some users were affected by an incomplete database upgrade when going from 1.0.1 to 1.2.
To fix this, simply Log out under the Account section from the app’s main screen, then log back in. The app will need to redownload all of your articles, so I suggest doing it on WiFi. When the articles are redownloaded, the problem should be fixed.