Make sure you have the pins uploaded in theme options – pin management if you have new actions / categories names for your properties.
Theme default pins are offered in the theme pack in .png format. You can edit these images with programs such as Fireworks.
IMPORTANT: When you edit/add default categories and actions, you’ll need to upload new Pins even if you don’t use Google Maps as header media. For speed reason pins are mandatory. See here all speed recommendations – http://help.wpresidence.net/article/how-to-improve-my-website-speed-my-website-is-too-slow/
In order for the Pins to show on the Google Map, you need to add pins for every Category, Action or category + action combination you use.
and for every category and action combined.