I have been experiencing the same problem since yesterday. Words are being truncated even when I copy and paste from the basic Windows NOTEPAD, which has pretty no formatting. Big problem 
shift+ctrl+v is not working for me
Found a temporary solution: Online HTML Stripper. Remove HTML and formatting from text
Edit: 
mhhh…it seems to be working for the body but not for the titles… Well, fortunately, the titles are never too long, so I can write them by hand
Edit2: Anyway, guys, I worked with the editor all night and noticed some remarkable improvements! From the text within stacks (which now automatically adjusts to the width of the stacks) to adding elements within stacks. Everything seems to be working better! Thank you for these improvements!