This affects all SDK apps - I can reproduce it with the clock, calendar, gallery, and music apps on the desktop.
On my system (Dell XPS 13 with external display) the video mode hotkey cycles in the following order:
extended mode -> mirror mode -> external display only -> internal display only -> extended mode
If I launch an SDK app while in extended mode, the app comes up on the laptop display. The SDK apps stay running after switching to mirror mode. Switching again to "external display only" mode reliably causes the SDK apps to crash.
This affects all SDK apps - I can reproduce it with the clock, calendar, gallery, and music apps on the desktop.
On my system (Dell XPS 13 with external display) the video mode hotkey cycles in the following order:
extended mode -> mirror mode -> external display only -> internal display only -> extended mode
If I launch an SDK app while in extended mode, the app comes up on the laptop display. The SDK apps stay running after switching to mirror mode. Switching again to "external display only" mode reliably causes the SDK apps to crash.