JEFBCreating.com

SEP 1, 2016 : NEW UPDATE!!!
A new update of Win10 AU is now available and seem to resolve all freeze issues (KB3176938, see http://news.softpedia.com/news/microsoft-releases-windows-10-cumulative-update-kb3176938-to-all-users-507831.shtml ). Simply update your Windows 10 (with windows update) and try again.

UPDATE : Bug seem to be a Windows 10 RS1 problem and our apps aren't in fault. To fix it, try :

1.Open the settings app.
2.Navigate to System.
3.In the system sub-menu, navigate to Apps and Features
4.Search for the app in question.
5.After selecting the app, select advanced options.
6.Tap reset.
7.All data will be deleted, including whatever bug prevents the app from properly working.
8.You may now re-open the app once more

(http://mspoweruser.com/mspu-solution-windows-10-apps-not-opening-or-hangs-on-launch/)
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Anniversary update : Bugs on our musical apps.

Some of you reports that last Windows 10 update (RS1) can crash apps like Piano10 or Organ10 on Surface Pro 4 and other tablet PC. We work hard for finding a solution asap. Stay tuned on FB!

http://www.express.co.uk/life-style/science-technology/696189/windows-10-anniversary-update-fix-system-freeze-crash-startup