Endnote references do not work and constantly get bugged after colleague has emailed me back our word document

After emailing a colleague a word document that we are working, he has emailed me back his edits and the endnote references no longer work. When I press update references it creates a new bibliography with only 8 or so references. Whereas the original document had over 100. Also, some new references that he has inserted into the documented look strange (as if there is coding or it’s not formatted properly. I attached a screenshot as an example).

Is there some way of fixing this or will I have to go back to the previous document I emailed beforehand?

This is getting very frustrating and it just makes me no longer want to use endnote. What’s the point if my co-workers and I can’t even edit and email back documents to each other?