Bookqueue II and Moviequeue v1.16 introduced content caching. As previously outlined in Bookqueue, we have a problem, the new update is intended to help increase availability of content. The content caching is On by default but can be turned Off in the Settings under Amazon. Look for the Content Caching section.
When turning Content Caching Off, the change will not be immediate but takes effect the next time the application is restarted.
Caching is limited in size to approximately 1MB on the device. If the cache gets larger, it will automatically delete its cache to make room for new content.