title: ArgumentNull_Generic error in UWP app
body: <p>I am facing a strange issue in one of my UWP apps. I have over 12,000 installs of this application and only few users (may be 5-6 of them) have reported this issue. It happens mostly on Windows Mobile, but also there have been reports of this error on Windows 10 Desktop. </p>
  
  <p>The error message is:
  ArgumentNull_Generic Arg_ParamName_Name, source. For more information, visit <a href="http://go.microsoft.com/fwlink/?LinkId=623485" rel="nofollow">http://go.microsoft.com/fwlink/?LinkId=623485</a></p>
  
  <p>I am not able to get this error at all, so I have no clue what to even look for. Usually for my users, I ask them to un-install and re-install the app, and this resolves the issue for them. But also to note, for these users, this problem keeps coming back every 4-5 days, and they have to un-install and re-install to get the problem fixed.</p>
  
  <p>Any idea. My app in question is: <a href="https://www.microsoft.com/en-us/store/apps/series-tracker/9nblggh3slj9" rel="nofollow">https://www.microsoft.com/en-us/store/apps/series-tracker/9nblggh3slj9</a></p>
  
  <p>Thanks</p>