I've noticed that some of the background tasks which are supposed to be running on my phone haven't been. It's enough that I'm fairly certain it's an OS-level problem affecting all apps on the phone.
A few particular examples:
- Paper Shuffle does not reliably (if at all) rotate the wallpaper on schedule. It will go hours on end without a rotation, while being scheduled to run at 20-30 minute intervals. When manually forced to shuffle though, it works fine.
- Battery Level for WP8 will not update the lock screen or live tile unless I actually launch the app.
- Until I opened the app a minute ago, The TV Show live tile said that Dexter episode 8x10 was due to air in 2 days. However, an event reminder fired off earlier to let me know (correctly) that the episode was airing tonight.
What could cause such a global failure of background tasks on my phone? All of these apps are authorized to run in the background, and are opened on a fairly regular basis. What other troubleshooting steps should I try?
Since this is not isolated to a single app, I don't think a re-install of any of these apps is likely to help. Also, I'd really rather not have to re-build the data (e.g.: show lists & watch history, wallpaper lists & preferences, etc.) associated with them either.