If your syndicated listings are missing photos on Brevitas you will need to log in to your Buildout account to fix this problem.
Log in to your Buildout account
Click on the listing that is missing photos on the "properties" page
Click "edit property" in the top right corner
Click on the media link on the left hand side bar
Then check the "Syndicate" checkbox on the right hand side of the photo
Keep in mind you will have to check this box for each photo you would like to syndicate to Brevitas