On my website, http://www.fabriziobiaggi.ch, if you select some projects, you can’t view the pictures. If I disable the Pro Version and mantain the free version, the galleries are ok. Could you fix it? I use Divi theme (updated to last release) and WP 5.0.3.
Please ensure that you’re using the latest versions of the plugin, both free and pro.
Please also check if some CSS or JS optimization is enabled at your website, maybe in your theme’s settings or in caching plugin settings. Try to temporary disable it, purge all website’s caches, clear browser’s caches and check again.
If it won’t help please contact us through our internal support and send us URL of the projects you have issues with. We will help you to fix this.