This has happened to me a few times in the past and I know how to fix it but curious if anyone else ran into this problem and knows the cause. I am running the latest version of VSD.

I made a few minor changes to my web site and publish it. I notice a lot of 'deleting images' as the site is being published. When I view the site a lot of images are missing, all are on pages I never changed.
The solution I found is to re-sync the website. Any idea the cause?