title: UWP App closing as soon as it opens (Windows.UI.Xaml.dll) - error
body: <p>We have a sideload AppXBundle where we are experiencing the app crashing right after it shows the splash screen.</p>
  <p>We install the certificate from our store association, double click on the appxbundle - App Installer prompt appears, and we click install. As mentioned, the splash screen shows, and then within a few seconds the app closes.</p>
  <p>Here is the error message from the Event Viewer:</p>
  <pre><code>Faulting application name: TestApp.exe, version: 1.1.11.0, time stamp: 0x5f0453e7
  Faulting module name: Windows.UI.Xaml.dll, version: 10.0.18362.815, time stamp: 0x9fa806f2
  Exception code: 0xc000027b
  Fault offset: 0x0000000000713530
  Faulting process id: 0x1b84
  Faulting application start time: 0x01d6544d6b4a7c36
  Faulting application path: C:\Program 
  Files\WindowsApps\TestApp_1.0.31.0_x64__e3skdg3cf6xk8\TestApp.UWP.exe
  Faulting module path: C:\Windows\System32\Windows.UI.Xaml.dll
  Report Id: 2eda3b62-5ac6-46cd-89b2-b251d05dea05
  Faulting package full name: TestApp_1.0.31.0_x64__e3skdg3cf6xk8
  Faulting package-relative application ID: App
  </code></pre>
  <p>We have done quite a bit of research on the Windows.UI.XAML dll issue - I have uninstalled it with powershell, and reinstalled it. I tried updating it. Nothing seems to do the trick.</p>
  <p>We have tried it with every compile version I can for the device (x64,x86,ARM,ARM64)</p>
  <p>The target device is a Surface GO, but we have expereinced the app crashing on x64 desktops with Windows version 17143+.</p>
  <p>We have this issue only on specific computers. 1909(build 18363.836) &lt;- windows version where the app works.</p>
  <p>If you need more information, please let us know.</p>