Github project is at https://github.com/GarthSmith/WindowsTwitterShareTestApp2016 with an appxbundle available here.
This app crashes on my Lumia 929 phone with Windows 10. Clicking the share button runs DataTransferManager.ShowShareUI(). Waiting on the Twitter login screen will then crash the app.
It does not crash if I have a debugger attached. It only crashes on my ARM phone with no debugger attached.
- How do I debug this crash?
 - How can I capture this crash for reporting?