I have the same problem.
Specifically, the switching to draft view or the jumping to previous paragraphs happens when you stay idle within a comment you add in track changes. It does not happen when I stay idle in the text document itself.
Would be great if Microsoft could indeed solve this problem.
You have replied to a very old thread. Which version of Word are you using?
Are you running EndNote as other posters in this thread? In that case, you need to make sure it is fully updated. Alternatively, try disabling the "Cite while you write" function and see if that overcomes the problem.
Note that it is usually better to create a brand new question thread (use the Ask the Community link at the top of the forums page). That way, your question will get more attention.