Track changes displaying large sections of undeleted text

I am proofreading a translation from French to English and track changes is displaying large sections of undeleted text on the right. This is extremely irritating and embarrassing as I send off the text with the track changes showing so the client can decide what to accept. This is very difficult if they can't see what has been deleted. I have searched online but cannot find a solution anywhere, grateful for any help with this.