UPDATE: Please fix, problems are still happening!!! After the last update I keep getting over 100 blank kindle book icons in my uncollected folder, as well as all of my other collections disappearing. I'll remove them, to have them again when I reopen the app. In order to get my missing book collections I have to close and reopen the app, which I sometimes have to do several times a day. It's extremely frustrating, please fix. Update: 2 - Please fix!! Same problem as above!!