a lot of people seem to have that problem, but there seems no solution or update from MS, therefore here an additional post including photos. The Cursor is broken in Office2016 / 365 abo since several month. It worked fine before and the problem appeared out of nowhere.
Description: The classic cursor is fine. Any other cursor seems to be scaled to a tiny spot or even disappearing:
Over normal text: No Problem:
Over Italics: No Photo available as there is simply no cursor any more!
On "resizing Tables":
Just left side of text sheet:
.. any many more.. ANNOYING!
The small cursors are embarrassing for Word/MS but no real problem - but all the disappearing cursor positions and wide areas like on complete emtpy pages on 43" screen drives me crazy!
I changed scaling: No effect
I reinstalled: No effect
I updated all drivers : No effect
"Word Pad" is running fine, even over italics!
I changed cursor styles: no effect (beside classic cursor, of course!)
Machine: i5-6600, 4K Display, Win10.