When listing the properties the main picture for each property shows up. If you click on a listing to go to the detail page for that property, if that property only has 1 picture for the property, that pictures shows correctly. If that property has multiple pictures no pictures show. Go to this link.
2027 Barry Cove has multiple pictures and 128 PR 3089 only has one picture. You can click on each and see what I'm talking about.
Please download latest OS Property version (Clicking on menu: My Downloads), after extracting the package, please open folder: Themes, and re-install Wider theme through tool: Manage OSP Themes.
Then, the issue will be solved