The following are some details about this Windows 10 UWP app bug.
Then, UWP apps are able to access files like pictures, documents, music, and pictures.
However, there is one permission calledbroadFileSystemAccessthat developers can allow an app to jump into the entirefile system.
Microsoft says this is a restricted capability.
And the access is configurable inSettings > Privacy > File system.
This apparently leaves sensitive data exposed to apps downloaded from Windows Store.
After he installs Windows 10 October 2018 Update, the app suddenly crashes on startup.
This is because Microsoft set the value of broad access file system to OFF in build 1809.
Now, the information about Windows 10 UWP bug is told to you.