I tried that, and I tried to upload the same photos again (migrate content problems maybe).
This problem occurs ONLY ON MOBILE, on desktop the sites are ok.
a) 1st PAGE
Now, this is a brand new site, that was made as https from the beginning. This problem shows only on mobile, when I preview one of my subpages now - MY SUBPAGE.
b) 2nd PAGE
When I go to companies Facebook site and click the link of MY WEBSITE, many images do not show, on the main page, as well as on the subpages, when Viewed on Mobile.
This site was at 1st made as http site and everything worked great, but when I changed it to https, then images dissapeared.
I changed everything in my cPanel 301 and the wp base with plugin, and even in Elementor - Tools - Replace URL and General - Regenerate CSS - Regenerate files I changed the old http to new https site.
Thank you for your help & Best regards,