'open site' not working properly

Hi, I am quite new to using local by flywheel. When I click the ‘open site’ button my site opens but only with the background colour and font of the theme, very bare bones of site, no images and not complete site. I have tried using different themes, also tried uninstalling and reinstalling local by flywheel, and have also cleared cache but it hasn’t made any difference. Any suggestions?
thanks