问题 I spent the last year (part time) to migrate my existing (and successful) Windows 8.1 app to Windows 10 UWP. Now, just before releasing it to the store, I tested the app in the "Release" build mode (which triggers .NET Native). Everything seemed to work until I - by chance - noted a subtle but serious (because data-compromising) bug. It took me two days to reduce it to these three lines of code: var array1 = new int[1, 1]; var array2 = (int[,])array1.Clone(); array2[0, 0] = 666; if (array1[0,