First of all, I absolutely love Ditto. I don't know how I ever lived without it. But I noticed something strange. I think it is emitting some extra / spurious keystrokes when pasting. Do this: In Windows 10 (I'm running Win10 Home, Creators Update, 64-bit, but I doubt it matters), start cmd.exe (by typing c m d into Cortana). Click the Ditto icon in the Notification Area to bring up Clipboard history. Watch your command prompt window closely as you double-click one of the entries in the Clipboard...