Still the same... Where abouts are you copying the data from? Like a scanning software program?
Only thing I can think of is where you are copying it from it is also copying the formatting behind it then pasting in here. Only thing I can think of now is to copy it from where ever you get it, paste it into a basic word pad like windows notepad then copy that to paste into hc. Copying from notepad only copies text and not formatted text. Not sure if win 10 has notepad... But I'm guessing it does somewhere.