title: Best way to Troubleshooting Live Tile notifications that stop working
body: <p>I'm finding the messages in the event log very cryptic. Searchs return no decent online documentation on what they mean. </p>
  
  <p>For example I have a message:
  The app  was successfully activated for the Windwos.BackgroundTasks contract. </p>
  
  <p>Trying to work out what this means. There are others too. My apps currently focus on background tasks and Tile notifications, and trying to troubleshoot them is difficult. </p>
  
  <p>I have one app that schedules the time periodically. (every hour it schedules the next hour) and another app that runs a background task with a 30 second timer continuously. So there should always be tile notifications happening, and yet I still see blank tiles and can't work out why. </p>
  
  <p>Currently the only error I can see is the one saying a tile timed out while visible. This indicates no more scheduled tiles but no hints as to why they just stop. </p>