slider images not shown

I have installed Photo theme and slider images are not loaded at all. Those are loaded when using Customizer, but not in normal view. I have multisite installation of Wordpress. I tried this theme also in my temp worpress which is not multisite and no problem, so is it possible that multisite installaition cause this problem?

Hello,
Could you please provide me with a URL to your website and back-end access via PM (click the “Private Message” text underneath my avatar) so that I may analyze it?