Hello, @mahlv,
I have checked your site without login here is the result: https://postimg.cc/s1YSx1Mq
And by logging in to the site and in the customizer this is the preview: https://postimg.cc/rdLsB2TW You can check both images and compare them with each other there is no difference both appear just as the same. You just have a cache issue nothing else. You disable the cache plugin already now please check back to your site after clearing the browser cache. I also record a video for you for better reference: https://streamable.com/86pyyo
Regards 8Themes Team.