Hi Baemi,
As per your description, when we tried to test at our end by using the Track Moves features in Word application by using the Ctrl + C/ Ctrl + X and Ctrl + V, the Track Moves doesn’t work and it will recognize as Insertion and Deletion.
So, I’ve tried to search how to use this feature and realized we’ve to use drag and drop feature to work it. You can check the video below.
And coming to “Adding a line (using Enter) does not show as an addition”, enable the Show or hide tab marks in Word application and check it. Refer to this article: Show or hide tab marks in Word.
Appreciate your understanding.
Best Regards,
Chitrahaas