Moved text shows as a deletion and an insertion
Microsoft Word’s Track Changes feature allows editors to show their clients what changes they have made to the text. However, moved text is not always displayed in green double strikethrough and double underline as promised in the Advanced Track Changes Options dialog box shown below.
Moved text is not marked as moved when the text you move has a tracked change in it. Paragraph 1 in the example below shows text that already had a change in it displayed in red as a deletion and an insertion after being moved. Paragraph 2 shows moved text in green. Paragraph 3 shows that the moved text displays the change that was made after it was moved.
If you want the moved text to be marked with double strikethrough and double underline (the default colour is green), reject all changes in it, make the move, and reapply all the changes.
If it is a big block of text, with several changes, I suggest you copy it before you reject the changes in the original. Then you can use the copied text as a model for redoing the changes in the moved text.