Missing words? I concur. I saw it with my own eyes and commented on it when cbs had the camera behind the podium. The right side of the last words in each line were cut off.
No - there were no problems with the teleprompter.
The optics shoot directly up to the screen and you have to be parallel to the panel to see the entire screen. The TV cameras were shooting from a back angle, and due to that angle, it eliminated part of the screen from the camera shot.